Added headless support to GitHub Action

Author: AutomationPanda

.github/workflows/test.yml

@@ -16,7 +16,7 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Use java ${{ matrix.java-version }}
-        uses: actions/setup-java@v2
+        uses: actions/setup-java@v3
         with:
           java-version: 17
           distribution: 'adopt'
@@ -27,4 +27,5 @@ jobs:
       - name: Test code
         run: mvn exec:exec@run-the-tests -Dexec.classpathScope=test
         env:
-          APPLITOOLS_API_KEY: ${{ secrets.APPLITOOLS_API_KEY }}
+          APPLITOOLS_API_KEY: ${{ secrets.APPLITOOLS_API_KEY }}
+          HEADLESS: true