Try to use the existing workflow together with a composer script

.github/workflows/unit-tests.yml

@@ -12,17 +12,17 @@ permissions:
   contents: write
 
 jobs:
-  run-unit-tests:
-    # TODO: Add the right Github Action here
-    #uses: mage-os/infrastructure/.github/workflows/unit-tests.yml@main
-
-    - name: Checkout
-      uses: actions/checkout@v2
-      with:
-        fetch-depth: 0
-
-    - name: Install dependencies
-      run: composer install --prefer-dist --no-progress --no-suggest --no-interaction --no-scripts
-
-    - name: Run unit tests
-      run: vendor/bin/phpunit
+  unit-test:
+    strategy:
+      matrix:
+        php_version:
+          - 7.4
+          - 8.1
+          - 8.2
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: mage-os/github-actions/unit-test@main
+        with:
+          php_version: ${{ matrix.php_version }}
+          composer_auth: ${{ secrets.COMPOSER_AUTH }}

composer.json

@@ -30,6 +30,9 @@
             "MageOS\\GraphQlPlayground\\": ""
         }
     },
+    "scripts": {
+        "test": "phpunit"
+    },
     "config": {
         "allow-plugins": {
             "magento/composer-dependency-version-audit-plugin": false,