Update deskutils/charmtimetracker to 1.12.0, latest upstream release.
Changes https://github.com/KDAB/Charm/releases/tag/1.12.0
- qtkeychain is now a mandatory dependency
- the KDAB-internal billing code is no longer optional, but can be user-configured away (I hope by default)
- duplicate idle detection dialog removed
- lots of other small fixes