Sunset old repos with apps we no longer release

See e.g.

https://invent.kde.org/network/kopete

We no longer release it, but it still has CI, that is now broken.

I would propose we archive that repo and disable the CI.

Beside that we need to close the Bugzilla product.

List of likely candidates to sunset:

• https://invent.kde.org/network/kopete
• https://invent.kde.org/graphics/kuickshow
• https://invent.kde.org/system/kiss
• https://invent.kde.org/system/mycroft-gui (https://github.com/MycroftAI/mycroft-core is dead)
• https://invent.kde.org/sdk/kobjecttracking
• https://invent.kde.org/sdk/qml-lsp
• https://invent.kde.org/sdk/rust-qt-binding-generator
• https://invent.kde.org/utilities/mycroft-plasmoid (https://github.com/MycroftAI/mycroft-core is dead)
• https://invent.kde.org/pim/trojita
• https://invent.kde.org/games/amor

This is the list of bugs that hang around on products that are closed to bug reports:

https://bugs.kde.org/buglist.cgi?bug_status=UNCONFIRMED&bug_status=CONFIRMED&bug_status=ASSIGNED&bug_status=REOPENED&classification=Unmaintained&limit=0&list_id=2847056&order=product%20DESC%2Cchangeddate%20DESC%2Ccomponent%2Cbug_status%2Cbug_id%20DESC&query_format=advanced