fix(moderation): pylint fixes (more of them!)

moderation/database.py

@@ -125,9 +125,9 @@ async def mysql_log(
     resolved_by: str = None,
     resolved_reason: str = None,
     expired: bool = None,
-    changes: list = [], # pylint: disable=dangerous-default-value
-    metadata: dict = {}, # pylint: disable=dangerous-default-value
-):
+    changes: list = [],
+    metadata: dict = {},
+): # pylint: disable=dangerous-default-value
     if not timestamp:
         timestamp = int(time.time())