Use jacogr/action-approve (#616)

.github/mergify.yml

@@ -23,12 +23,3 @@ pull_request_rules:
       queue:
         name: default
         method: squash
-
-  - name: auto approval
-    conditions:
-      - author~=^jacogr$
-      - label=automerge
-    actions:
-      review:
-        type: APPROVE
-        message: This auto-approval rule should be removed once more JS maintainers are active.

.github/workflows/approve.yml

@@ -0,0 +1,14 @@
+name: PR
+
+on: pull_request
+
+jobs:
+  auto-approve:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: jacogr/action-approve@master
+        with:
+          authors: jacogr
+          labels: automerge
+          token: ${{ secrets.GH_PAT_BOT }}