KDE Gear projects with failing CI (master) (10 June 2025)

[Albert Astals Cid]

Please work on fixing them, otherwise i will remove the failing CI jobs on 
their 4th failing week, it is very important that CI is passing for multiple 
reasons.

I removed all the flatpak builds that didn't compile

Bad news: 1 repo still failing, 1 new repo failing

cantor - 2nd week
 * https://invent.kde.org/education/cantor/-/pipelines/963838
  * testmaxima fails


kmail - NEW
 * https://invent.kde.org/pim/kmail/-/pipelines/969026
  * pre-commit fails

Cheers,
  Albert