deskutils/tatuin: Update 0.25.2 => 0.26.0

Changelogs:

• https://github.com/panter-dsd/tatuin/releases/tag/v0.26.0
• https://github.com/panter-dsd/tatuin/compare/v0.25.2...v0.26.0

Approved by: db@, yuri@ (Mentors, implicit)