src/Service/GitHubRequestHandler.php:53:38: PossiblyNullArgument: Argument 1 of App\Service\GitHubRequestHandler::authenticate cannot be null, possibly null value provided (see https://psalm.dev/078)

src/Service/GitHubRequestHandler.php:53:81: PossiblyNullArgument: Argument 2 of App\Service\GitHubRequestHandler::authenticate cannot be null, possibly null value provided (see https://psalm.dev/078)