[breaking changes] Upgrade go-github and go-github-client

[wreulicke]

Upgrade go-github and go-github-client

This PR has breaking changes.
For example, this PR makes ghfs.Client incompatible because *githubv58.Client is not incompatible with *githubv67.Client

func Client(client *github.Client) Option { 
	return func(c *config) error {
		if client != nil {
			c.client = client
		}
		return nil
	}
}

k1LoW/octocov#463 requires this PR.

[k1LoW]

@wreulicke Thank you! Could you update the branch( or rebase the main)? CI fixes have been completed.

[wreulicke]

@k1LoW
Thank you for your quick response. I updated!