www/ungoogled-chromium: update to 127.0.6533.119

This update also removes the --audio-backend command line switch
in favor of an actual setting in the browser that can be changed
at chrome://flags/#audio-backend

Security:	https://vuxml.freebsd.org/freebsd/05cd9f82-5426-11ef-8a0f-a8a1599412c6.html
Approved by:	portmgr (implicit)