www/mod_wsgi4: Update from 4.5.18 to 4.5.22

Pet portlint

Changelog: https://modwsgi.readthedocs.io/en/develop/release-notes/version-4.5.22.html

PR: 223861
Submitted by: douglas@douglasthrift.net (maintainer)
Approved by: tcberner (mentor)
Differential Revision: https://reviews.freebsd.org/D13247