save artifacts separately

Author: osvalda

.github/workflows/node.js.yml

@@ -27,9 +27,9 @@ jobs:
     - run: npm run build --if-present
     - run: npm test
     - name: Update Coverage Badge
-      if: github.ref == format('refs/heads/{0}', github.event.repository.default_branch)
+      if: ${{ matrix.node-version == 20.x }}
       uses: we-cli/coverage-badge-action@main
     - uses: actions/upload-artifact@v4
       with:
-        name: coverage-artifacts
+        name: coverage-artifacts-${{ matrix.node-version }}
         path: coverage # or path/to/artifact