geek/tos3_migration: update version to latest TOS 5.0
Just to make it clear that migration is performed to Turris OS 5.0 and not to 4.0.
Self sign-up has been disabled due to increased spam activity. If you want to get access, please send an email to a project owner (preferred) or at gitlab(at)nic(dot)cz. We apologize for the inconvenience.
Just to make it clear that migration is performed to Turris OS 5.0 and not to 4.0.