chore(ci): Upload coverage to coveralls

Author: nwoltman

.github/workflows/ci.yml

@@ -27,3 +27,6 @@ jobs:
           node-version: ${{ matrix.node-version }}
       - run: npm install
       - run: npm test
+      - name: Upload coverage
+        if: matrix.node-version == '18'
+        uses: coverallsapp/github-action@v2