fix(add-ons): execute repository scoped add-ons only once

These should not be executed on linked components, but only on the main
one. This is generic solution to the problem replacing previous specific
solution to single event and add-on.

Fixes WeblateOrg#12232
Fixes WeblateOrg#10892

weblate/addons/models.py

@@ -273,6 +273,10 @@ def execute_addon_event(
     method: str | Callable,
     args: tuple | None = None,
 ) -> None:
+    # Trigger repository scoped add-ons only on the main component
+    if addon.repo_scope and component.linked_component:
+        return
+
     # Log logging result and error flag for add-on activity log
     log_result = None
     error_occurred = False