Add workflow to auto cherry-pick PR to release branch release-1.0

Cherry-pick will be triggered once branch is merged and it's labelled
cherry-pick-release-1.0.

Signed-off-by: Anil Vishnoi <[email protected]>

.github/workflows/cherry-pick.yml

@@ -0,0 +1,28 @@
+on:
+  pull_request:
+    branches:
+      - main
+    types: ["closed"]
+
+jobs:
+  cherry_pick_release_1_0:
+    runs-on: ubuntu-latest
+    name: Cherry pick into release-1.0 branch
+    if: ${{ contains(github.event.pull_request.labels.*.name, 'cherry-pick-release-1.0') && github.event.pull_request.merged == true }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Cherry pick into release-1.0 branch
+        uses: carloscastrojumo/[email protected]
+        with:
+          branch: release-1.0
+          labels: |
+            cherry-pick
+          reviewers: |
+            aReviewerUser
+          title: '[cherry-pick] {old_title}'
+          body: 'Cherry picking #{old_pull_request_id} onto this branch'
+env:
+  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}