While `repo.OriginalURL` is supposed to be sanitized, with username and
passwords removed, it appears that is not always the case, and sometimes
we may encounter original URLs that aren't sanitized. While that is
possibly a historical artifact, we should still treat it with care.
As such, before displaying `repo.OriginalURL` as an info flash when
syncing a pull repository, sanitize the URL first, to be on the safe
side.
Signed-off-by: Gergely Nagy <forgejo@gergo.csillger.hu>