NewClient returns a github client with the necessary auth.

RunMkcmp runs minikube built at the given pr against minikube at master.

BotName is the name of the minikube Pull Request bot.

GithubAccessTokenEnvVar is the env var name to use.

GithubOwner is the owner of the github repository.

GithubRepo is the name of the github repository.

OkToTestLabel is the github label for ok-to-test.

Client provides the context and client with necessary auth for interacting with the GitHub API.