ci: add github action to auto rebase release-dev/* onto main

Author: bowenli86

.github/workflows/rebase-release-dev-on-main.yml

@@ -0,0 +1,40 @@
+name: Rebase release-dev/* onto main
+
+on:
+  schedule:
+    - cron: "0 20 * * *"  # Runs at 8pm UTC daily
+  workflow_dispatch:
+
+jobs:
+  rebase-release-dev:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Setup Git
+        run: |
+          git config user.name "GitHub Actions"
+          git config user.email "[email protected]"
+
+      - name: Fetch all remote branches
+        run: |
+          git fetch origin "+refs/heads/*:refs/remotes/origin/*"
+
+      - name: Rebase each release-dev/* branch onto main
+        run: |
+          MAIN_BRANCH=main
+          for BRANCH in $(git branch -r | grep 'origin/release-dev/' | sed 's|origin/||'); do
+            echo "Rebasing $BRANCH onto $MAIN_BRANCH"
+            git checkout $BRANCH
+            git rebase origin/$MAIN_BRANCH || {
+              echo "Rebase failed for $BRANCH, skipping push"
+              git rebase --abort
+              continue
+            }
+            git push origin $BRANCH --force-with-lease
+          done