Run gopls modernize on codebase (#34751)

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

modules/cache/cache.go

@@ -24,7 +24,7 @@ func Init() error {
 		if err != nil {
 			return err
 		}
-		for i := 0; i < 10; i++ {
+		for range 10 {
 			if err = c.Ping(); err == nil {
 				break
 			}