fix use of forbid-only flag

Author: frangio

.github/workflows/test.yml

@@ -12,5 +12,5 @@ jobs:
       - uses: actions/checkout@v3
       - name: Set up environment
         uses: ./.github/actions/setup
-      - run: npm run coverage --forbid-only
+      - run: npm run coverage -- --forbid-only
       - uses: codecov/codecov-action@v3