Update deprecated method in expire_accounts.py (#10173)

* Update deprecated method

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Co-authored-by: Mek <michael.karpeles@gmail.com>

scripts/expire_accounts.py

@@ -1,12 +1,14 @@
-from datetime import datetime
+from datetime import UTC, datetime
 
 import web
 
 
 def delete_old_links():
     for doc in web.ctx.site.store.values(type="account-link"):
         expiry_date = datetime.strptime(doc["expires_on"], "%Y-%m-%dT%H:%M:%S.%f")
-        now = datetime.utcnow()
+        # Make expiry_date timezone-aware:
+        expiry_date = expiry_date.replace(tzinfo=UTC)
+        now = datetime.now(UTC)
         key = doc["_key"]
         if expiry_date > now:
             print("Deleting link %s" % (key))