Auto rebase groovy-dsl on top of kotlin-dsl

.github/workflows/auto-rebase.yml

@@ -0,0 +1,24 @@
+name: Rebase groovy-dsl branch automatically
+on:
+  push:
+    branches:
+      - kotlin-dsl
+  workflow_dispatch:
+
+jobs:
+  rebase:
+    if: github.repository_owner == 'gradle'
+    steps:
+      - name: checkout
+        uses: actions/checkout@v4
+        with:
+          ref: groovy-dsl
+
+      - name: rebase
+        id: rebase
+        run: git rebase origin/kotlin-dsl
+
+      - name: Push changes
+        if: ${{ steps.rebase.outputs.result == 'success' }}
+        run: git push origin groovy-dsl
+