Default to INFO logging for matrix-synapse-rest-auth, not DEBUG

roles/matrix-server/tasks/setup_synapse_ext_rest_auth.yml

@@ -29,7 +29,7 @@
     matrix_synapse_additional_loggers: >
       {{ matrix_synapse_additional_loggers }}
       +
-      {{ [{'name': 'rest_auth_provider', 'level': 'DEBUG'}] }}
+      {{ [{'name': 'rest_auth_provider', 'level': 'INFO'}] }}
   when: "matrix_synapse_ext_password_provider_rest_auth_enabled"
 
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