Added codecov test results

Signed-off-by: Alberto Tudela <[email protected]>

Author: ajtudela

.github/workflows/build.yml

@@ -43,3 +43,9 @@ jobs:
           flags: unittests
           name: codecov-umbrella
           slug: ajtudela/laser_segmentation
+      - name: Upload test results to Codecov
+        if: ${{ !cancelled() }}
+        uses: codecov/test-results-action@v1
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          flags: unittests