Node version in github workflow is not correctly set

[tilap]

Hi. Thanks for this great repo !

There is a misspell in the github workflow publish.yml. The action actions/setup-node@v1 set the node version with node-version and not node_version (otherwise, it the the v10.X).

      - name: Setup Node.js
        uses: actions/setup-node@v1
        with:
          node-version: 12 # <-- this line
          registry-url: 'https://npm.pkg.github.com'

Have a nice day!