Enable tenv and testifylint rules (#32852)

Enables tenv and testifylint linters
closes: https://github.com/go-gitea/gitea/issues/32842

services/webhook/webhook_test.go

@@ -21,11 +21,11 @@ func TestWebhook_GetSlackHook(t *testing.T) {
 		Meta: `{"channel": "foo", "username": "username", "color": "blue"}`,
 	}
 	slackHook := GetSlackHook(w)
-	assert.Equal(t, *slackHook, SlackMeta{
+	assert.Equal(t, SlackMeta{
 		Channel:  "foo",
 		Username: "username",
 		Color:    "blue",
-	})
+	}, *slackHook)
 }
 
 func TestPrepareWebhooks(t *testing.T) {