limesurvey: mark as broken

limesurvey is not yet compatible with PHP 8.1.

nixos/modules/services/web-apps/limesurvey.nix

···
 
     services.phpfpm.pools.limesurvey = {
       inherit user group;
-      phpPackage = pkgs.php80;
+      phpPackage = pkgs.php81;
       phpEnv.DBENGINE = "${cfg.database.dbEngine}";
       phpEnv.LIMESURVEY_CONFIG = "${limesurveyConfig}";
       settings = {
···
       environment.LIMESURVEY_CONFIG = limesurveyConfig;
       script = ''
         # update or install the database as required
-        ${pkgs.php80}/bin/php ${pkg}/share/limesurvey/application/commands/console.php updatedb || \
-        ${pkgs.php80}/bin/php ${pkg}/share/limesurvey/application/commands/console.php install admin password admin [e-mail] verbose
+        ${pkgs.php81}/bin/php ${pkg}/share/limesurvey/application/commands/console.php updatedb || \
+        ${pkgs.php81}/bin/php ${pkg}/share/limesurvey/application/commands/console.php install admin password admin [e-mail] verbose
       '';
       serviceConfig = {
         User = user;

pkgs/servers/limesurvey/default.nix

···
     homepage = "https://www.limesurvey.org";
     maintainers = with maintainers; [offline];
     platforms = with platforms; unix;
+    broken = true; # Not compatible with PHP 8.1
   };
 }