chore: arrange imports in a standard way (#21452)

Fixes all our Go file imports to match the preferred spec that we've _mostly_ been using. For example:

```
import (
	"context"
	"time"

	"github.com/prometheus/client_golang/prometheus"
	"golang.org/x/xerrors"
	"gopkg.in/natefinch/lumberjack.v2"

	"cdr.dev/slog/v3"
	"github.com/coder/coder/v2/codersdk/agentsdk"
	"github.com/coder/serpent"
)
```

3 groups: standard library, 3rd partly libs, Coder libs.

This PR makes the change across the codebase. The PR in the stack above modifies our formatting to maintain this state of affairs, and is a separate PR so it's possible to review that one in detail.

agent/agent.go

@@ -37,7 +37,6 @@ import (
 	"tailscale.com/util/clientmetric"
 
 	"cdr.dev/slog/v3"
-
 	"github.com/coder/clistat"
 	"github.com/coder/coder/v2/agent/agentcontainers"
 	"github.com/coder/coder/v2/agent/agentexec"

agent/agent_internal_test.go

@@ -7,9 +7,7 @@ import (
 	"github.com/stretchr/testify/require"
 
 	"cdr.dev/slog/v3"
-
 	"cdr.dev/slog/v3/sloggers/slogtest"
-
 	"github.com/coder/coder/v2/agent/proto"
 	"github.com/coder/coder/v2/testutil"
 )

agent/agent_test.go

@@ -25,10 +25,6 @@ import (
 	"testing"
 	"time"
 
-	"go.uber.org/goleak"
-	"tailscale.com/net/speedtest"
-	"tailscale.com/tailcfg"
-
 	"github.com/bramvdbogaerde/go-scp"
 	"github.com/google/uuid"
 	"github.com/ory/dockertest/v3"
@@ -40,13 +36,14 @@ import (
 	"github.com/spf13/afero"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+	"go.uber.org/goleak"
 	"golang.org/x/crypto/ssh"
 	"golang.org/x/xerrors"
+	"tailscale.com/net/speedtest"
+	"tailscale.com/tailcfg"
 
 	"cdr.dev/slog/v3"
-
 	"cdr.dev/slog/v3/sloggers/slogtest"
-
 	"github.com/coder/coder/v2/agent"
 	"github.com/coder/coder/v2/agent/agentcontainers"
 	"github.com/coder/coder/v2/agent/agentssh"

agent/agentcontainers/api.go

@@ -27,7 +27,6 @@ import (
 	"golang.org/x/xerrors"
 
 	"cdr.dev/slog/v3"
-
 	"github.com/coder/coder/v2/agent/agentcontainers/ignore"
 	"github.com/coder/coder/v2/agent/agentcontainers/watcher"
 	"github.com/coder/coder/v2/agent/agentexec"

agent/agentcontainers/api_test.go

@@ -28,11 +28,8 @@ import (
 	"golang.org/x/xerrors"
 
 	"cdr.dev/slog/v3"
-
 	"cdr.dev/slog/v3/sloggers/sloghuman"
-
 	"cdr.dev/slog/v3/sloggers/slogtest"
-
 	"github.com/coder/coder/v2/agent/agentcontainers"
 	"github.com/coder/coder/v2/agent/agentcontainers/acmock"
 	"github.com/coder/coder/v2/agent/agentcontainers/watcher"

agent/agentcontainers/devcontainer.go

@@ -8,7 +8,6 @@ import (
 	"github.com/google/uuid"
 
 	"cdr.dev/slog/v3"
-
 	"github.com/coder/coder/v2/codersdk"
 )
 

agent/agentcontainers/devcontainercli.go

@@ -14,7 +14,6 @@ import (
 	"golang.org/x/xerrors"
 
 	"cdr.dev/slog/v3"
-
 	"github.com/coder/coder/v2/agent/agentexec"
 	"github.com/coder/coder/v2/codersdk"
 )

agent/agentcontainers/devcontainercli_test.go

@@ -22,9 +22,7 @@ import (
 	"github.com/stretchr/testify/require"
 
 	"cdr.dev/slog/v3"
-
 	"cdr.dev/slog/v3/sloggers/slogtest"
-
 	"github.com/coder/coder/v2/agent/agentcontainers"
 	"github.com/coder/coder/v2/agent/agentexec"
 	"github.com/coder/coder/v2/codersdk"

agent/agentcontainers/execer.go

@@ -8,7 +8,6 @@ import (
 	"strings"
 
 	"cdr.dev/slog/v3"
-
 	"github.com/coder/coder/v2/agent/agentexec"
 	"github.com/coder/coder/v2/agent/usershell"
 	"github.com/coder/coder/v2/pty"

agent/agentcontainers/subagent.go

@@ -8,7 +8,6 @@ import (
 	"golang.org/x/xerrors"
 
 	"cdr.dev/slog/v3"
-
 	agentproto "github.com/coder/coder/v2/agent/proto"
 	"github.com/coder/coder/v2/codersdk"
 )

agent/agentscripts/agentscripts.go

@@ -21,7 +21,6 @@ import (
 	"google.golang.org/protobuf/types/known/timestamppb"
 
 	"cdr.dev/slog/v3"
-
 	"github.com/coder/coder/v2/agent/agentssh"
 	"github.com/coder/coder/v2/agent/proto"
 	"github.com/coder/coder/v2/coderd/database/dbtime"

agent/agentsocket/server.go

@@ -11,7 +11,6 @@ import (
 	"storj.io/drpc/drpcserver"
 
 	"cdr.dev/slog/v3"
-
 	"github.com/coder/coder/v2/agent/agentsocket/proto"
 	"github.com/coder/coder/v2/agent/unit"
 	"github.com/coder/coder/v2/codersdk/drpcsdk"

agent/agentsocket/server_test.go

@@ -11,7 +11,6 @@ import (
 	"github.com/stretchr/testify/require"
 
 	"cdr.dev/slog/v3"
-
 	"github.com/coder/coder/v2/agent"
 	"github.com/coder/coder/v2/agent/agentsocket"
 	"github.com/coder/coder/v2/agent/agenttest"

agent/agentsocket/service.go

@@ -7,7 +7,6 @@ import (
 	"golang.org/x/xerrors"
 
 	"cdr.dev/slog/v3"
-
 	"github.com/coder/coder/v2/agent/agentsocket/proto"
 	"github.com/coder/coder/v2/agent/unit"
 )

agent/agentsocket/service_test.go

@@ -9,7 +9,6 @@ import (
 	"github.com/stretchr/testify/require"
 
 	"cdr.dev/slog/v3"
-
 	"github.com/coder/coder/v2/agent/agentsocket"
 	"github.com/coder/coder/v2/agent/unit"
 	"github.com/coder/coder/v2/testutil"

agent/agentssh/agentssh.go

@@ -28,7 +28,6 @@ import (
 	"golang.org/x/xerrors"
 
 	"cdr.dev/slog/v3"
-
 	"github.com/coder/coder/v2/agent/agentcontainers"
 	"github.com/coder/coder/v2/agent/agentexec"
 	"github.com/coder/coder/v2/agent/agentrsa"

agent/agentssh/agentssh_test.go

@@ -26,7 +26,6 @@ import (
 
 	"cdr.dev/slog/v3"
 	"cdr.dev/slog/v3/sloggers/slogtest"
-
 	"github.com/coder/coder/v2/agent/agentexec"
 	"github.com/coder/coder/v2/agent/agentssh"
 	"github.com/coder/coder/v2/pty/ptytest"

agent/agenttest/client.go

@@ -22,7 +22,6 @@ import (
 	"tailscale.com/tailcfg"
 
 	"cdr.dev/slog/v3"
-
 	agentproto "github.com/coder/coder/v2/agent/proto"
 	"github.com/coder/coder/v2/codersdk"
 	"github.com/coder/coder/v2/codersdk/agentsdk"

agent/apphealth.go

@@ -10,7 +10,6 @@ import (
 	"golang.org/x/xerrors"
 
 	"cdr.dev/slog/v3"
-
 	"github.com/coder/coder/v2/codersdk"
 	"github.com/coder/coder/v2/codersdk/agentsdk"
 	"github.com/coder/quartz"

agent/boundary_logs_test.go

@@ -15,7 +15,6 @@ import (
 	"google.golang.org/protobuf/types/known/timestamppb"
 
 	"cdr.dev/slog/v3"
-
 	"github.com/coder/coder/v2/agent/boundarylogproxy"
 	"github.com/coder/coder/v2/agent/boundarylogproxy/codec"
 	agentproto "github.com/coder/coder/v2/agent/proto"

agent/boundarylogproxy/proxy.go

@@ -15,7 +15,6 @@ import (
 	"google.golang.org/protobuf/proto"
 
 	"cdr.dev/slog/v3"
-
 	"github.com/coder/coder/v2/agent/boundarylogproxy/codec"
 	agentproto "github.com/coder/coder/v2/agent/proto"
 )

agent/checkpoint_internal_test.go

@@ -7,7 +7,6 @@ import (
 	"golang.org/x/xerrors"
 
 	"cdr.dev/slog/v3/sloggers/slogtest"
-
 	"github.com/coder/coder/v2/testutil"
 )
 

agent/files.go

@@ -18,7 +18,6 @@ import (
 	"golang.org/x/xerrors"
 
 	"cdr.dev/slog/v3"
-
 	"github.com/coder/coder/v2/coderd/httpapi"
 	"github.com/coder/coder/v2/codersdk"
 	"github.com/coder/coder/v2/codersdk/workspacesdk"

agent/metrics.go

@@ -10,7 +10,6 @@ import (
 	"tailscale.com/util/clientmetric"
 
 	"cdr.dev/slog/v3"
-
 	"github.com/coder/coder/v2/agent/proto"
 )
 

agent/proto/resourcesmonitor/resources_monitor.go

@@ -5,7 +5,6 @@ import (
 	"time"
 
 	"cdr.dev/slog/v3"
-
 	"github.com/coder/coder/v2/agent/proto"
 	"github.com/coder/quartz"
 )

agent/proto/resourcesmonitor/resources_monitor_test.go

@@ -10,7 +10,6 @@ import (
 
 	"cdr.dev/slog/v3"
 	"cdr.dev/slog/v3/sloggers/sloghuman"
-
 	"github.com/coder/coder/v2/agent/proto"
 	"github.com/coder/coder/v2/agent/proto/resourcesmonitor"
 	"github.com/coder/quartz"

agent/reconnectingpty/buffered.go

@@ -13,7 +13,6 @@ import (
 	"golang.org/x/xerrors"
 
 	"cdr.dev/slog/v3"
-
 	"github.com/coder/coder/v2/agent/agentexec"
 	"github.com/coder/coder/v2/pty"
 )

agent/reconnectingpty/reconnectingpty.go

@@ -14,7 +14,6 @@ import (
 	"golang.org/x/xerrors"
 
 	"cdr.dev/slog/v3"
-
 	"github.com/coder/coder/v2/agent/agentexec"
 	"github.com/coder/coder/v2/codersdk/workspacesdk"
 	"github.com/coder/coder/v2/pty"

agent/reconnectingpty/screen.go

@@ -19,7 +19,6 @@ import (
 	"golang.org/x/xerrors"
 
 	"cdr.dev/slog/v3"
-
 	"github.com/coder/coder/v2/agent/agentexec"
 	"github.com/coder/coder/v2/pty"
 )

agent/reconnectingpty/server.go

@@ -14,7 +14,6 @@ import (
 	"golang.org/x/xerrors"
 
 	"cdr.dev/slog/v3"
-
 	"github.com/coder/coder/v2/agent/agentcontainers"
 	"github.com/coder/coder/v2/agent/agentssh"
 	"github.com/coder/coder/v2/agent/usershell"

agent/stats.go

@@ -10,7 +10,6 @@ import (
 	"tailscale.com/types/netlogtype"
 
 	"cdr.dev/slog/v3"
-
 	"github.com/coder/coder/v2/agent/proto"
 )
 

agent/stats_internal_test.go

@@ -10,7 +10,6 @@ import (
 	"github.com/stretchr/testify/require"
 	"google.golang.org/protobuf/types/known/durationpb"
 	"tailscale.com/types/ipproto"
-
 	"tailscale.com/types/netlogtype"
 
 	"github.com/coder/coder/v2/agent/proto"