audio/jack: Update to 1.9.22 release.
ChangeLog: https://github.com/jackaudio/jack2/releases/tag/v1.9.22
* The waf autooption --example-tools has been removed.
* The example clients and tools are no longer part of the jack2 project.
* Drop dependencies that were only used for example clients and tools
(readline, sndfile and zita libs)
* Fix build with python3.11+
* Fix compatibility with macOS 12+
* Fix ringbuffer thread safety on ARM
PR: 269413
Reported by: dev@submerge.ch (maintainer)
audio/jack: unbreak build with Python 3.11 (+)
'U' is default and deprecated since python-3.3, becomes a failure in 3.11.
See also: https://github.com/jackaudio/jack2/issues/898
Obtained from: Gentoo
Approved by: portmgr blanket (trivial fix build)