* fix use helper for _handle_failed_db_connection_for_get_key_object
* track ALLOW_FAILED_DB_REQUESTS on prometheus
* fix allow_failed_db_requests check
* fix allow_requests_on_db_unavailable
* fix allow_requests_on_db_unavailable
* docs allow_requests_on_db_unavailable
* identify user_id as litellm_proxy_admin_name when DB is failing
* test_handle_failed_db_connection
* fix test_user_api_key_auth_db_unavailable
* update best practices for prod doc
* update best practices for prod
* fix handle db failure