TEMP: Log errors occurring while refreshing user tokens as debug mess…

…ages

Temporary solution to avoid spamming Sentry with exceptions like this one https://sentry.galaxyproject.org/organizations/galaxy/issues/125247/events/64073692e52f49afac1f4eb38c174f84/.

lib/galaxy/authnz/managers.py

@@ -332,7 +332,7 @@ def refresh_expiring_oidc_tokens_for_provider(self, trans, auth):
             return True
         except Exception as e:
             msg = f"An error occurred when refreshing user token: {e}"
-            log.error(msg)
+            log.debug(msg)
             return False
 
     def refresh_expiring_oidc_tokens(self, trans, user=None):