fix: use Lchown to prevent erroring on broken symlinks (#434)

Author: strike

envbuilder.go

@@ -815,7 +815,7 @@ func run(ctx context.Context, opts options.Options, execArgs *execArgsInfo) erro
 			if err != nil {
 				return err
 			}
-			return os.Chown(path, execArgs.UserInfo.uid, execArgs.UserInfo.gid)
+			return os.Lchown(path, execArgs.UserInfo.uid, execArgs.UserInfo.gid)
 		}); chownErr != nil {
 			opts.Logger(log.LevelError, "chown %q: %s", execArgs.UserInfo.user.HomeDir, chownErr.Error())
 			endStage("⚠️ Failed to the ownership of the workspace, you may need to fix this manually!")
@@ -832,7 +832,7 @@ func run(ctx context.Context, opts options.Options, execArgs *execArgsInfo) erro
 			if err != nil {
 				return err
 			}
-			return os.Chown(path, execArgs.UserInfo.uid, execArgs.UserInfo.gid)
+			return os.Lchown(path, execArgs.UserInfo.uid, execArgs.UserInfo.gid)
 		}); chownErr != nil {
 			opts.Logger(log.LevelError, "chown %q: %s", execArgs.UserInfo.user.HomeDir, chownErr.Error())
 			endStage("⚠️ Failed to update ownership of %s, you may need to fix this manually!", execArgs.UserInfo.user.HomeDir)