x11/plank: Update 0.11.154 => 0.11.156
Changelog:
https://github.com/zquestz/plank-reloaded/releases/tag/0.11.155
https://github.com/zquestz/plank-reloaded/releases/tag/0.11.156
PR: 291304
Approved by: daniel@shafer.cc (maintainer, implicit - inactive since 2021)