Example workflow used in this article: https://medium.com/@merlin.pav/122c653c0b09?source=friends_link&sk=4ca7d4ab89ce41f2118a1d9aad50807d

github_article_sample_cd_workflow__callaction.yaml

jobs:
  validate-release-name:
    name: Validate release name
    runs-on: 'ubuntu-latest'
    steps:
      - name: Checkout working branch
        uses: actions/checkout@v2

      - name: Checkout private actions repo
        uses: actions/checkout@v2
        with:
           repository: acme/private-actions
           token: ${{ secrets.GitHub_PAT }} # `GitHub_PAT` is a secret that contains your PAT
           path: private-actions