mergify: fix mergify config

fix deprecated mergify config

Signed-off-by: Nikhil-Ladha <nikhilladha1999@gmail.com>

Author: Nikhil-Ladha

.github/mergify.yml

@@ -3,11 +3,11 @@ defaults:
   actions:
     queue:
       name: default
-      method: rebase
-      update_method: rebase
 
 queue_rules:
   - name: default
+    merge_method: rebase
+    update_method: rebase
     conditions:
       - "status-success=codespell"
       - "status-success=build_bundle"