adds a sage-test workflow

.github/workflows/sage-test.yml

@@ -0,0 +1,34 @@
+name: Sage Install Tests
+on:
+  pull_request:
+    branches:
+      - main
+    paths:
+      - '/private/scripts/**'
+jobs:
+  linux:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        php-version: [7.4, 8.0, 8.1, 8.2]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php-version }}
+      - name: Install Composer Dependencies
+        run: composer install --no-progress --no-suggest --prefer-dist
+      - name: Run Sage Install Script
+        run: |
+          composer install-sage || exit_code=$?
+          if [[ -n "${exit_code}" ]]; then
+            echo "❌ Sage Install Script Failed with exit code ${exit_code}"
+            exit $exit_code
+          else
+            echo "✅ Sage Install Script passed!"
+            exit 0;
+          fi
+        shell: bash