Add `destroy` to bulk_database_action dangerbot suggestions

What does this MR do and why?

Add destroy to bulk_database_action dangerbot suggestions

We already check if the code includes destroy but the suggestion comment did not include it which can lead to confusion.

New message states:

When using update, upsert, delete, destroy, update_all, upsert_all, delete_all or destroy_all you must include the full database query and query execution plan in the merge request description, and request a database review.

This comment can be ignored if the object is not an ActiveRecord class, since no database query would be generated.

---

For more information, see Database Review documentation.