ci(mergify): upgrade configuration to current format

.mergify.yml

@@ -1,27 +1,18 @@
-queue_rules:
-  - name: default
-    conditions:
-      - check-success=fedora/check
-
 pull_request_rules:
   - name: renovate
     actions:
-      queue:
+      merge:
         method: rebase
-        name: default
     conditions:
-    - author=renovate[bot]
-    - label!=no-mergify
-    - "#changes-requested-reviews-by=0"
-    - check-success=fedora/check
-
+      - author=renovate[bot]
+      - label!=no-mergify
+      - "#changes-requested-reviews-by=0"
+      - check-success=fedora/check
   - name: default
     actions:
-      queue:
+      merge:
         method: rebase
-        name: default
     conditions:
-    - label!=no-mergify
-    - '#approved-reviews-by>=1'
-    - check-success=fedora/check
-    - check-success=CodeQL
+      - label!=no-mergify
+      - '#approved-reviews-by>=1'
+      - check-success=fedora/check