sysutils/htop: Update to 2.2.0

Among other changes this fixes a regression where trying to kill a
process with htop terminates htop and leads to the error message
"htop: No such file or directory".

Changes: https://github.com/hishamhm/htop/compare/2.1.0-26-g697f5bb...2.2.0
PR: 227115
Submitted by: tobik
Reported by: Philipp Engel <kidon@posteo.de>
Approved by: Hung-Yi Chen <gaod@hychen.org> (maintainer timeout, 2 weeks)