Add more sync records + fix small bug in monitoring task causing deletion metrics to never be emitted (#3837)

Double check we don't double-emit + fix pruning metric

Add log

Fix comment

rename

backend/onyx/redis/redis_connector_prune.py

@@ -92,7 +92,7 @@ class RedisConnectorPrune:
         if fence_bytes is None:
             return None
 
-        fence_int = cast(int, fence_bytes)
+        fence_int = int(cast(bytes, fence_bytes))
         return fence_int
 
     @generator_complete.setter