title: How to use Github Release Version Number in Github Action
body: <p>I have created a Github repo that has got an action to build the npm package and publish it to npmjs.com. The trigger for my action is the creation of a new release in Github. When creating the new release, Github is asking me for a version number. I would love to use this version number in the Action and provide it to the yarn publish command.</p>
  
  <p>My ci-file looks like this (i stripped some parts that are not important here):</p>
  
  <pre><code>name: Deploy npm package
  
  on:
    release:
      types: [created]
  
  jobs:
    publish-npm:
      runs-on: ubuntu-latest
      steps:
        - uses: actions/checkout@v1
        - uses: actions/setup-node@v1
          with:
            node-version: 12
            registry-url: https://registry.npmjs.org/
        - run: yarn install
        - run: yarn build
        - run: yarn publish --new-version ${...}
          env:a
            NODE_AUTH_TOKEN: ${{secrets.npm_token}}
  </code></pre>
  
  <p>Is there an environmental variable that contains the version number from the release?</p>