RHEL 8 support

[Greg Couch]

Is there going to be a (commercial) downloadable version of PyQt 6.8 
that supports Red Hat 8?   According to 
https://doc.qt.io/qt-6/supported-platforms.html, Red Hat 8 is still 
supported.  But the released PyQt 6.8 requires glibc 2.35 
(manylinux_2_35_x86_64) and Red Hat 8 uses glibc 2.28, so it won't 
install.  I see the same problem with the PyQt6-Qt6 and PyQt6-WebEngine 
downloads.

     -- Greg