Update status with webhook from other repo actions

[gadenbuie]

Using https://github.com/peter-evans/repository-dispatch. The workflow in this repo is all set up but I'd need to wire it up in the workflows of the tracked repos (and document how to do it).

[gadenbuie]

• Create a new PAT with repo and workflow access

• tic::gha_add_secret("<paste_token_here>", name = "TIC_UPDATE", repo_slug = "owner/repo") for each repo that needs the secret

• In each repo run tic::use_update_yml() (optional)

• In each repo update the .github/workflows/main.yml (or whatever name the action is) and add this step:

  - name: Update status dashboard at gadenbuie/status
      uses: peter-evans/repository-dispatch@v1
      if: github.ref == 'refs/heads/HEAD' &&  matrix.config.os == 'macOS-latest' && matrix.config.r == 'release'
      with:
        token: ${{ secrets.TIC_UPDATE }}
        event-type: status-update
        repository: gadenbuie/status # where to send the event

[gadenbuie]

Adds a composite action, designed to work with r-lib/actions/check-standard

- name: Update status dashboard
  uses: gadenbuie/status/actions/status-update-rcmdcheck@main
  with:
    github-token-repo-scope: ${{ secrets.GITHUB_STATUS_UPDATE_TOKEN }}
    status-repo: gadenbuie/status

Note that the action internally includes the condition:

      if: |
        (github.ref == 'refs/heads/master' || github.ref == 'refs/heads/main') &&
        matrix.config.os == 'ubuntu-latest' &&
        matrix.config.r == 'release'