Fix node version check again

Author: knolleary

.github/workflows/tests.yml

@@ -28,7 +28,7 @@ jobs:
         npm run test
         npm run coverage
     - name: Publish to coveralls.io
-      if: ${{ matrix.node == 14 }}
+      if: ${{ matrix.node-version == 14 }}
       uses: coverallsapp/[email protected]
       with:
         github-token: ${{ github.token }}