Changed the test workflow

Author: 0x41head

.github/workflows/tests.yml

@@ -17,6 +17,4 @@ jobs:
       uses: actions/setup-node@v1
       with:
         node-version: ${{ matrix.node-version }}
-    - run: npm ci
-    - run: npm run build --if-present
     - run: npm test -- --watch=false --browsers=ChromeHeadless