Yet another attempt to fix the intermittent failure of gpg git test (#9146)

* Yet another attempt to fix the race in gpg_git_test

* add some fail nows

* Need to set preparetestenv

* Ensure that http messages go to the correct server

integrations/git_helper_for_declarative_test.go

@@ -91,6 +91,7 @@ func onGiteaRun(t *testing.T, callback func(*testing.T, *url.URL), prepare ...bo
 	assert.NoError(t, err)
 	listener, err := net.Listen("tcp", u.Host)
 	assert.NoError(t, err)
+	u.Host = listener.Addr().String()
 
 	defer func() {
 		ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)