Fix publishing unit-test results by PRs from forked repos

[Youw]

Latest sample: #20 Unit-tests executed fine, but the results are not published if the PR is from a forked repo:

This action is running on a pull_request event for a fork repository. Pull request comments and check runs cannot be created, so disabling these features. To fully run the action on fork repository pull requests, see https://github.com/EnricoMi/publish-unit-test-result-action/blob/v2.12.0/README.md#support-fork-repositories-and-dependabot-branches