@Legoktm: I have updated the module to also accept the new v3.0 or v3.1 license strings and updated the links to actually point to the respective license text rather than to a general landing page. Perhaps it is time to migrate "GPL-2.0+" to "GPL-2.0-or-later" on extension pages with some bot.
GPL-2.0 is pretty nasty since this could mean "GPL-2.0-only" or "GPL-2.0-or-later" so this cannot be migrated automatically.
Perhaps you know somebody who operates a bot that is capable of migrating at least the obvious. No, I am not thinking of you but I know that you know a couple of people closer to the technical end.