print/cups: update to 2.4.8

CUPS 2.4.8 brings many bug fixes which aggregated over the last half a year.
It brings the important fix for race conditions and errors which can happen
when installing permanent IPP Everywhere printer, support for PAM modules
password-auth and system-auth and new option for lpstat which can show only
the successful jobs.

Detailed list of changes is available in CHANGES.md:
https://github.com/OpenPrinting/cups/blob/v2.4.8/CHANGES.md

PR: 278899
Approved by: tijl (maintainer)
MFH: 2024Q2

(cherry picked from commit 172b2c14257c7e6b3747c6dda4d7d5dab45a7aa7)