Default mautrix-facebook to WARNING loggers by default

Overlooked in https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1909

roles/matrix-bridge-mautrix-facebook/defaults/main.yml

@@ -130,4 +130,4 @@ matrix_mautrix_facebook_registration_yaml: |
 matrix_mautrix_facebook_registration: "{{ matrix_mautrix_facebook_registration_yaml|from_yaml }}"
 
 # Specifies the default log level for all bridge loggers.
-matrix_mautrix_facebook_logging_level: DEBUG
+matrix_mautrix_facebook_logging_level: WARNING