Create merge-to-dev.yml

.github/workflows/merge-to-dev.yml

@@ -0,0 +1,17 @@
+name: Merge master branch to dev
+on:
+  push:
+    branches:
+      - 'master'
+jobs:
+  merge-branch:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - name: Merge to dev branch
+        uses: devmasx/merge-branch@v1.1.0
+        with:
+          type: now
+          target_branch: 'dev'
+        env:
+          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}