Retire the Skype package from Flathub on May 5th, 2025

[nekohayo]

The application will become a useless brick on 2025-05-05:
https://www.theverge.com/news/621353/microsoft-skype-shutting-down-retirement-may-2025

I suppose you could then close all tickets by pointing them here.

[AsciiWolf]

Yep, it definitely needs to be EOL.

/cc @FakeShemp

[ls-1N]

Beginner users might be confused by the flatpak error from trying to update flatpaks. Not sure if this is an issue if using a GUI store too or only in CLI.

 3. [✗] com.skype.Client                    stable          u           flathub            1.0 kB / 194.4 MB

Error: While downloading https://api.snapcraft.io/api/v1/snaps/download/QRDEfjn4WJYnm0FzDKwqqRZZI77awQEV_386.snap: Server returned status 404: Not Found
Updates complete.
error: There were one or more errors