resolve invalid definition in .mergify.yml

Author: fmigneault

.mergify.yml

@@ -4,16 +4,15 @@ queue_rules:
       - base=main
 
 pull_request_rules:
-  - name: Automatic merge on approval and when when GitHub branch protection passes on main
+  - name: Automatic merge on approval and when GitHub branch protection passes on main
     conditions:
       - "#approved-reviews-by>=1"
       - base=main
     actions:
       queue:
         method: merge
         name: default
-        
-pull_request_rules:
+
   - name: Automatic merge for leadership team members when there are no reviewers
     conditions:
       - "#review-requested=0"