Add a `github-ci-trogger-token:` option to trigger CI on `create-pull-request` and `push-to-pull-request-branch`

[dsyme]

When generated actions use GITHUB_TOKEN in Actions, events do not trigger. This is generally wise to prevent event cascades but is particularly painful for create-pull-request and push-to-pull-request-branch as CI events don't trigger. This is mentioned in the FAQ.

So we want to add a new token option to ``create-pull-requestandpush-to-pull-request-branch`

safe-outputs:
    create-pull-request:
        github-ci-trigger-token: ${{ secrets.SOME_TOKEN }} 

Where, if present, this token is used only to push an empty extra commit to the pull request using auth with that token (usually a user token) in order to trigger events for CI to happen

If GH_AW_CI_TRIGGER_TOKEN is set then CI trigger commit push happens implicitly

If github-ci-trigger-token: is present then that explicit token is used.

If github-ci-trigger-token: app is used then app auth is used.

Update all docs and FAQ

[dsyme]

Fixed