update mergify.yml

.github/mergify.yml

@@ -29,8 +29,11 @@ queue_rules:
 pull_request_rules:
   - name: Automatic queue to merge
     conditions:
-      - '#approved-reviews-by >= 1'
-      - '#review-requested = 0'
+      - or:
+        - label = automerge
+        - and:
+          - '#approved-reviews-by >= 1'
+          - '#review-requested = 0'
     actions:
       queue: