ci(mergify): upgrade configuration to current format (#747)

Co-authored-by: Mergify <37929162+mergify[bot]@users.noreply.github.com>

.mergify.yml

@@ -1,15 +1,15 @@
 queue_rules:
   - name: dependabot-updates
-    conditions:
+    queue_conditions:
+      - author=dependabot[bot]
+      - base=development
+    merge_conditions:
       - check-success=lints
       - check-success=check
+    merge_method: squash
 
 pull_request_rules:
-  - name: Automatic merge for Dependabot pull requests
-    conditions:
-      - author=dependabot[bot]
-      - base=development
+  - name: refactored queue action rule
+    conditions: []
     actions:
       queue:
-        method: squash
-        name: dependabot-updates