added Mergify

.mergify.yml

@@ -0,0 +1,25 @@
+queue_rules:
+  - name: default
+    queue_conditions:
+      - check-success=build
+      - check-success=DeepScan
+    merge_method: squash
+
+pull_request_rules:
+  - name: Automatic merge on approval
+    conditions:
+      - "#approved-reviews-by>=1"
+    actions:
+      queue:
+        name: default
+  - name: automatic branch update
+    conditions:
+      - -conflict # skip PRs with conflicts
+      - -draft # filter-out GH draft PRs
+    actions:
+      update: {}
+  - name: delete head branch after merge
+    conditions:
+      - merged
+    actions:
+      delete_head_branch: {}