Describe the enhancement

Node.js v14.15.0 has been released and the 14.x release line now moves into Active LTS. Can the GitHub Actions runner support it as the runtime of a JavaScript (TypeScript) action? Is there a roadmap for this?

Code Snippet

Today, we can set node12 to runs.using.

runs:
  using: 'node12'
  main: 'main.js'

Can we set node14 (or node16) as follows?

runs:
  using: 'node14'
  main: 'main.js'

Additional information

https://docs.github.com/en/actions/creating-actions/metadata-syntax-for-github-actions#runs-for-javascript-actions

We also need to update the documentation when node14 is available.