chore(testutil): add testutil.GoleakOptions (#16070)

- Adds `testutil.GoleakOptions` and consolidates existing options to
this location
- Pre-emptively adds required ignore for this Dependabot PR to pass CI
https://github.com/coder/coder/pull/16066

cli/clitest/clitest_test.go

@@ -8,10 +8,11 @@ import (
 	"github.com/coder/coder/v2/cli/clitest"
 	"github.com/coder/coder/v2/coderd/coderdtest"
 	"github.com/coder/coder/v2/pty/ptytest"
+	"github.com/coder/coder/v2/testutil"
 )
 
 func TestMain(m *testing.M) {
-	goleak.VerifyTestMain(m)
+	goleak.VerifyTestMain(m, testutil.GoleakOptions...)
 }
 
 func TestCli(t *testing.T) {

cli/root_internal_test.go

@@ -19,6 +19,7 @@ import (
 	"github.com/coder/coder/v2/cli/cliui"
 	"github.com/coder/coder/v2/cli/telemetry"
 	"github.com/coder/coder/v2/codersdk"
+	"github.com/coder/coder/v2/testutil"
 	"github.com/coder/pretty"
 	"github.com/coder/serpent"
 )
@@ -29,15 +30,7 @@ func TestMain(m *testing.M) {
 		// See: https://github.com/coder/coder/issues/8954
 		os.Exit(m.Run())
 	}
-	goleak.VerifyTestMain(m,
-		// The lumberjack library is used by by agent and seems to leave
-		// goroutines after Close(), fails TestGitSSH tests.
-		// https://github.com/natefinch/lumberjack/pull/100
-		goleak.IgnoreTopFunction("gopkg.in/natefinch/lumberjack%2ev2.(*Logger).millRun"),
-		goleak.IgnoreTopFunction("gopkg.in/natefinch/lumberjack%2ev2.(*Logger).mill.func1"),
-		// The pq library appears to leave around a goroutine after Close().
-		goleak.IgnoreTopFunction("github.com/lib/pq.NewDialListener"),
-	)
+	goleak.VerifyTestMain(m, testutil.GoleakOptions...)
 }
 
 func Test_formatExamples(t *testing.T) {