ci: Adjust mergify

mergify.yml

@@ -0,0 +1,36 @@
+pull_request_rules:
+  - name: automatic strict merge when CI passes, has 2 reviews, no requests for change and is labeled 'ready-to-merge' unless labelled 'do-not-merge/breaking-change' or 'do-not-merge/work-in-progress'
+    conditions:
+      # Only pull-requests sent to the master branch
+      - base=master
+
+      # All Azure builds should be green:
+      - status-success=Uno.UI - CI
+
+      # CLA check must pass:
+      #- "status-success=license/cla"
+
+      # Note that this only matches people with write / admin access to the repo,
+      # see <https://doc.mergify.io/conditions.html#attribute-list>
+      - "#approved-reviews-by>=2"
+      - "#changes-requested-reviews-by=0"
+
+      # Pull-request must be labeled with:
+      - label=ready-to-merge
+
+      # Do not automatically merge pull-requests that are labelled as do-not-merge
+      # see <https://doc.mergify.io/examples.html#id6>
+      - label!=do-not-merge/breaking-change
+      - label!=do-not-merge/work-in-progress
+
+    # Note: mergify cannot break branch protection rules
+    actions:
+      merge:
+        method: merge
+
+  - name: automatic merge for allcontributors pull requests
+    conditions:
+      - author=allcontributors[bot]
+    actions:
+      merge:
+        method: merge