Add condition back

Author: GabrielBB

.github/workflows/local.yml

@@ -22,6 +22,7 @@ jobs:
           run: pwd
 
       - name: Test XVFB with options
+        if: ${{ matrix.os == 'ubuntu-latest' }}
         uses: ./
         with:
           options: -screen 0 1600x1200x24