Within the PR https://github.com/go-gitea/gitea/pull/2184 on Gitea the
project dropped the standard behavior to use x-auth-basic personal
access token. So we should use a proper username and the token from now
on to support Gitea >= 1.2.0. Since this driver anyway only supports
Gitea >= 1.2.0 this won't be a breaking change on Drone side, the only
breaking change is on side of Gitea!