This action should be added under the 'build_windows' job as follows:

• name: 'Check Functionality'
  if: ${{ success() }}
  uses: POV-Ray/povray/.github/actions/windows_check@gh-actions-v2
  with:
  version-base: 3.8
  solution: vs2015
  platform: x64Windows CLI build check for GitHub Actions.

Note that the sample above assumes this action will have a tag named 'gh-actions-v2'

Here is a running example:https://github.com/trevorsandy/povray/actions

Cheers,