runner-images/.github/workflows/update_github_release.yml

name: Update release

on:
  repository_dispatch:
    types: [update-github-release]


jobs:
  build:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2

    - name: Update release for ${{ github.event.client_payload.ReleaseBranchName }}
      uses: actions/github-script@v2
      with:
        github-token: ${{secrets.GITHUB_TOKEN}}
        script: |
            const response = await github.repos.getReleaseByTag({
              owner: context.repo.owner,
              repo: context.repo.repo,
              tag: "${{ github.event.client_payload.ReleaseBranchName }}"
            });
            github.repos.updateRelease({
              owner: context.repo.owner,
              repo: context.repo.repo,
              release_id: response.data.id,
              prerelease: ${{ github.event.client_payload.Prerelease }}
            });