chore: update resync func

Author: pycorn0729

neurons/validators/validator.py

@@ -87,13 +87,11 @@ def __init__(self, config=None):
 
     def resync_metagraph(self):
         # Copies state of metagraph before syncing.
-        previous_metagraph = copy.deepcopy(self.metagraph)
-
+        previous_axons = copy.deepcopy(self.metagraph.axons)
         # Sync the metagraph.
         self.metagraph.sync(subtensor=self.subtensor)
-
         # Check if the metagraph axon info has changed.
-        if previous_metagraph.axons == self.metagraph.axons:
+        if previous_axons == self.metagraph.axons:
             return
 
         bt.logging.info(