chore(ci): merge to prod branch on release

Author: qwerzl

.github/workflows/on-release.yml

@@ -0,0 +1,18 @@
+name: Sync from staging to prod
+on:
+  push:
+    tags:        
+      - '**'
+jobs:
+  sync-branch:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+
+      - name: Merge staging -> prod
+        uses: devmasx/merge-branch@master
+        with:
+          type: now
+          from_branch: next
+          target_branch: prod
+          github_token: ${{ secrets.GITHUB_TOKEN }}