security: fix all bandit issues

app/terraform/proxy/cloudfront.py

@@ -74,7 +74,8 @@ class ProxyCloudfrontAutomation(ProxyAutomation):
     """
 
     def import_state(self, state: Any) -> None:
-        assert(isinstance(state, dict))
+        if not isinstance(dict, state):
+            raise RuntimeError("The Terraform state object returned was not a dict.")
         if "child_modules" not in state['values']['root_module']:
             # There are no CloudFront proxies deployed to import state for
             return