According to the commit log this is the license the repo was created with in 2020[0] title should be "SSH-MitM in no way changes its license". Just a point fishing attempt? The latest commit does seem to be undoing a customized wording of the GPLv3 from Dec/2020[1]
[0]: https://github.com/ssh-mitm/ssh-mitm/commit/f4263d19211f080f... [1]: https://github.com/ssh-mitm/ssh-mitm/commit/6db7208c50b3d7e0...