Merge pull request #11761 from brave/6595-trigger-rebase-on-pr-ready

Add rebase when PRs move from draft to ready for review

.github/workflows/pr_ready_for_review.yml

@@ -0,0 +1,33 @@
+name: Ready for Review Rebase
+
+on:
+  pull_request:
+    types: [ready_for_review]
+
+jobs:
+  add_label:
+    if: contains(github.event.pull_request.labels.*.name, 'CI/run-draft') != true
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: add rebase label
+        uses: actions-ecosystem/action-add-labels@v1
+        with:
+          labels: rebase
+
+      - name: git checkout
+        uses: actions/checkout@v2
+        with:
+          token: ${{ secrets.PERSONAL_ACCESS_TOKEN }}
+          fetch-depth: 0
+
+      - name: automatic rebase
+        uses: cirrus-actions/rebase@1.5
+        env:
+          GITHUB_TOKEN: ${{ secrets.PERSONAL_ACCESS_TOKEN }}
+
+      - name: remove label
+        if: always()
+        uses: actions-ecosystem/action-remove-labels@v1
+        with:
+          labels: rebase