updater-ng: version 69.1.0

Changed

• Package requests solver no longer tries to maximize number of selected requests but rahter follows strictly rules of requests priority
• Install requests with same priority as Unistall are resolved first
• Install and Unistall requests without condition as resolved before requests with condition given they have same priority specified.

Removed

• Error reported when request to install and unistall same package was specified

This contains turris/updater/updater!287 (merged) and fixes part of https://gitlab.nic.cz/turris/project/-/issues/116#note_206489.