Backport #27486 by @lunny
Fix#27204
This PR allows `/<username>/<reponame>/attachments/<uuid>` access with
personal access token and also changed attachments API download url to
it so it can be download correctly.
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Change all license headers to comply with REUSE specification.
Fix#16132
Co-authored-by: flynnnnnnnnnn <flynnnnnnnnnn@github>
Co-authored-by: John Olheiser <john.olheiser@gmail.com>