MP-2692 add codecov reporting (#191)

.github/workflows/test-runner.yaml

@@ -8,6 +8,7 @@ on:
 
 jobs:
   build:
+    name: Tests and Codecov
     runs-on: ubuntu-latest
 
     steps:
@@ -16,5 +17,12 @@ jobs:
         uses: actions/setup-node@v3
         with:
           node-version: '20.x'
-      - run: yarn
-      - run: yarn test
+      - name: Install dependencies
+        run: yarn
+      - name: Run tests
+        run: yarn test
+      - name: Upload coverage reports to Codecov
+        uses: codecov/codecov-action@v3
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: coverage/lcov.info