chore: adding xvfb action

Signed-off-by: Pawel Psztyc <jarrodek@gmail.com>

Author: jarrodek

.github/workflows/deployment.yml

@@ -27,8 +27,10 @@ jobs:
             ${{ runner.os }}-node-
       - name: Install dependencies
         run: npm ci
-      - name: Run tests
-        run: npm test
+      - name: Run headless test
+        uses: GabrielBB/xvfb-action@v1
+        with:
+          run: npm test
   # test_win:
   #   name: "Windows"
   #   runs-on: windows-latest