chore: add /v2 to import module path (#9072)

* chore: add /v2 to import module path

go mod requires semantic versioning with versions greater than 1.x

This was a mechanical update by running:
```
go install github.com/marwan-at-work/mod/cmd/mod@latest
mod upgrade
```

Migrate generated files to import /v2

* Fix gen

coderd/schedule/autostop.go

@@ -8,8 +8,8 @@ import (
 	"go.opentelemetry.io/otel/trace"
 	"golang.org/x/xerrors"
 
-	"github.com/coder/coder/coderd/database"
-	"github.com/coder/coder/coderd/tracing"
+	"github.com/coder/coder/v2/coderd/database"
+	"github.com/coder/coder/v2/coderd/tracing"
 )
 
 const (

coderd/schedule/autostop_test.go

@@ -11,11 +11,11 @@ import (
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
-	"github.com/coder/coder/coderd/database"
-	"github.com/coder/coder/coderd/database/dbgen"
-	"github.com/coder/coder/coderd/database/dbtestutil"
-	"github.com/coder/coder/coderd/schedule"
-	"github.com/coder/coder/testutil"
+	"github.com/coder/coder/v2/coderd/database"
+	"github.com/coder/coder/v2/coderd/database/dbgen"
+	"github.com/coder/coder/v2/coderd/database/dbtestutil"
+	"github.com/coder/coder/v2/coderd/schedule"
+	"github.com/coder/coder/v2/testutil"
 )
 
 func TestCalculateAutoStop(t *testing.T) {

coderd/schedule/cron_test.go

@@ -6,7 +6,7 @@ import (
 
 	"github.com/stretchr/testify/require"
 
-	"github.com/coder/coder/coderd/schedule"
+	"github.com/coder/coder/v2/coderd/schedule"
 )
 
 func Test_Weekly(t *testing.T) {

coderd/schedule/mock.go

@@ -5,7 +5,7 @@ import (
 
 	"github.com/google/uuid"
 
-	"github.com/coder/coder/coderd/database"
+	"github.com/coder/coder/v2/coderd/database"
 )
 
 type MockTemplateScheduleStore struct {

coderd/schedule/template.go

@@ -7,8 +7,8 @@ import (
 	"github.com/google/uuid"
 	"golang.org/x/xerrors"
 
-	"github.com/coder/coder/coderd/database"
-	"github.com/coder/coder/coderd/tracing"
+	"github.com/coder/coder/v2/coderd/database"
+	"github.com/coder/coder/v2/coderd/tracing"
 )
 
 const MaxTemplateRestartRequirementWeeks = 16

coderd/schedule/user.go

@@ -5,7 +5,7 @@ import (
 
 	"github.com/google/uuid"
 
-	"github.com/coder/coder/coderd/database"
+	"github.com/coder/coder/v2/coderd/database"
 )
 
 type UserQuietHoursScheduleOptions struct {