ci(coverage): clarify coverage data as related to unit tests when publishing to codecov

Author: travi

.github/workflows/node-ci.yml

@@ -28,9 +28,12 @@ jobs:
       - run: npm install --global corepack@latest
       - run: corepack npm audit signatures
       - run: npm test
-      - uses: codecov/codecov-action@e79a6962e0d4c0c17b229090214935d2e33f8354 # v6.0.1
+      - name: Upload unit test coverage to Codecov
+        uses: codecov/codecov-action@e79a6962e0d4c0c17b229090214935d2e33f8354 # v6.0.1
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
+          flags: unit
+          report_type: coverage
   verify-matrix:
     runs-on: ubuntu-latest
     strategy: