Add testing workflow

.github/workflows/test.yaml

@@ -0,0 +1,33 @@
+name: Sync multiple branches
+on:
+  push:
+    branches:
+      - 'staging'
+  workflow_dispatch:
+  
+jobs:
+  test-and-sync:
+    name: Test and Sync SCALE Catalog
+    runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/truecharts/devcontainer:v2.6.0@sha256:cefec796e714cd07bae25ef48670999819ceefa0cbb5ff8b9738fabc916ceea7
+    steps:
+      - uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # tag=v3
+        name: Checkout
+        with:
+          fetch-depth: 1
+
+      - name: catalog tests
+        run: |
+          echo "Starting Catalog Validation"
+          /usr/local/bin/catalog_validate validate --path "${PWD}/catalog"
+          
+      - uses: actions/checkout@master
+
+      - name: Merge staging -> main
+        uses: devmasx/merge-branch@master
+        with:
+          type: now
+          from_branch: staging
+          target_branch: main
+          github_token: ${{ github.token }}