Use default Git timeout when checking repo health (#33593) (#33598)

Backport #33593 by @Zettat123

Use `git.timeout.DEFAULT` configuration instead of 60 seconds.

Co-authored-by: Zettat123 <zettat123@gmail.com>

services/cron/tasks_basic.go

@@ -54,7 +54,7 @@ func registerRepoHealthCheck() {
 			RunAtStart: false,
 			Schedule:   "@midnight",
 		},
-		Timeout: 60 * time.Second,
+		Timeout: time.Duration(setting.Git.Timeout.Default) * time.Second,
 		Args:    []string{},
 	}, func(ctx context.Context, _ *user_model.User, config Config) error {
 		rhcConfig := config.(*RepoHealthCheckConfig)