fix(aurora): fixed an error with timedelta formatting

aurora/models/moderation.py

@@ -10,6 +10,7 @@ from discord import NotFound
 from redbot.core.bot import Red
 
 from ..utilities.logger import logger
+from ..utilities.utils import timedelta_to_string
 from .base import AuroraGuildModel
 from .change import Change
 from .partials import PartialChannel, PartialRole, PartialUser
@@ -348,7 +349,7 @@ class Moderation(AuroraGuildModel):
             "target_id": target_id,
             "moderator_id": moderator_id,
             "role_id": role_id,
-            "duration": str(duration) if duration else None,
+            "duration": timedelta_to_string(duration) if duration else None,
             "end_timestamp": end_timestamp.timestamp() if end_timestamp else None,
             "reason": reason,
             "resolved": resolved,