fix: typing fixes since moving to Mapped types in models

app/terraform/bridge/meta.py

@@ -127,6 +127,8 @@ class BridgeMetaAutomation(BaseAutomation):
         ).all()
         logging.debug("Found %s deprecated bridges", len(deprecated_bridges))
         for bridge in deprecated_bridges:
+            if bridge.deprecated is None:
+                continue  # Possible due to SQLAlchemy lazy loading
             cutoff = datetime.datetime.utcnow() - datetime.timedelta(hours=bridge.conf.expiry_hours)
             if bridge.deprecated < cutoff:
                 logging.debug("Destroying expired bridge")