chore: add release please workflow targeting master (#3654)

Author: ElinorW

.github/workflows/release-please-master.yml

@@ -0,0 +1,21 @@
+name: Release Please for Master
+
+on:
+  push:
+    branches:
+      - dev  # Trigger when dev is updated
+
+jobs:
+  release-please-master:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Run Release Please for Master
+        uses: googleapis/release-please-action@v4
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          target-branch: master
+          config-file: release-please-config.json
+          manifest-file: .release-please-manifest.json