archivers/arqiver: Update 0.12.0 → 1.0.0

Changelog:

• The Qt5 support is removed and the minimum required version of Qt is bumped to 6.6.
• Also, an unadvertised support is added for application/vnd.snap.

https://github.com/tsujan/Arqiver/releases/tag/V1.0.0

PR: 282640