A number of oktokit api methods were unavailable in the current version of this action, I bumped them to their highest available non-breaking versions. There's a version 5.. of @octokit/plugin-rest-endpoint-methods but it moves all of the API endpoints from oktokit.* to oktokit.rest.* which would be a breaking change for users of the github-script action, so I leave that as a future exercise.

You can test my fork with ironsean/github-script@v-test.

Fixes #133