x11/rofi-calc: Update 2.5.0 -> 2.5.1 (bugfix)

Changelog:
https://github.com/svenstaro/rofi-calc/blob/v2.5.1/CHANGELOG.md

Changes:

• Fix -calc-command-history and -calc-error-color not working due to getting

parsed incorrectly #148 (thanks @Jontos)

PR: 293367
Reported by: Vidar Karlsen <vidar@karlsen.tech> (maintainer)