use codecov action

.github/workflows/test.yml

@@ -38,7 +38,7 @@ jobs:
       SOLIDUS_BRANCH: ${{ matrix.solidus }}
       DB: ${{ matrix.database }}
       RAILS_ENV: test
-      TEST_RESULTS_PATH: test-results/results.xml
+      TEST_RESULTS_PATH: coverage/coverage.xml
     services:
       postgres:
         image: postgres:14
@@ -80,8 +80,16 @@ jobs:
           echo "DATABASE_URL=postgres://dummy:dummy@127.0.0.1:5432/dummy_test?pool=5" >> $GITHUB_ENV
       - name: Run tests for Solidus ${{ matrix.solidus }} on ${{ matrix.database }} with Ruby ${{ matrix.ruby-version }}
         run: bundle exec rake
-      - name: Store test results
-        uses: actions/upload-artifact@v4
+      - name: Upload coverage reports to Codecov
+        uses: codecov/codecov-action@v4
         with:
-          name: test-results-${{ github.ref_name }}-${{ matrix.solidus }}-${{ matrix.database }}-${{ matrix.ruby-version }}
-          path: test-results
+          token: ${{ secrets.CODECOV_TOKEN }}
+          slug: solidusio-contrib/solidus_reviews
+          file: ./coverage/coverage.xml
+      - uses: actions/upload-artifact@v4
+        if: failure()
+        with:
+          name: Screenshots
+          path: |
+            tmp/capybara
+            tmp/screenshots