GitHub token isn't exposed on forked pull requests

[jirfag]

See golangci/golangci-lint#1072.

The issue is that secrets are not passed to workflows that are triggered by a pull request from a fork.

Currently this action uses github token to find the latest patch version of specified minor release.

My idea is to generate version-maps.json in golangci-lint repository and download it for detecting a last patch version. Using GitHub API without tokens can fail because of 60 req/hour rate limit.

[ernado]

Can we use standard GITHUB_TOKEN https://help.github.com/en/actions/configuring-and-managing-workflows/authenticating-with-the-github_token#using-the-github_token-in-a-workflow ?

[jirfag]

looks like it works, thank you @ernado !

[jirfag]

and we can get rid of it as a simplifying feature in #11