Detect whether the GitHub token is read-only and fallback to logging command if needed

[leodido]

Describe the feature or problem you’d like to solve

The (future) gh-pull-review reporter will need a GitHub token with write permissions of the GitHub Review API.

This is because it needs to be able to write stuff into the pull request.

Proposed solution

If the GitHub token is read-only we could fallback to report via the logging command and create annotations similar to the gh-pull-check reporter.

Additional context

NONE

[fntlnz]

This is also needed for when the lstn action is installed in a github repo and a PR is opened from a fork.

[leodido]

This was done long ago