core: do not restart a service with Restart=always when ExecCondition fails

When a Condition*= fails, and a service has Restart=always,
the service is not restarted.
Follow the same behaviour for ExecCondition= to avoid inconsistencies.

Fixes #22257

src/core/service.c

@@ -1798,7 +1798,7 @@ static bool service_shall_restart(Service *s, const char **reason) {
                 return false;
 
         case SERVICE_RESTART_ALWAYS:
-                return true;
+                return s->result != SERVICE_SKIP_CONDITION;
 
         case SERVICE_RESTART_ON_SUCCESS:
                 return s->result == SERVICE_SUCCESS;