Run gopls modernize on codebase (#34751)

Recent modernize fixes:
https://github.com/golang/tools/commits/master/gopls/internal/analysis/modernize

modules/globallock/globallock_test.go

@@ -70,7 +70,7 @@ func testLockAndDo(t *testing.T) {
 	count := 0
 	wg := sync.WaitGroup{}
 	wg.Add(concurrency)
-	for i := 0; i < concurrency; i++ {
+	for range concurrency {
 		go func() {
 			defer wg.Done()
 			err := LockAndDo(ctx, "test", func(ctx context.Context) error {