SUSE-SU-2026:0991-1 Security update for systemd

This update for systemd fixes the following issue: - CVE-2026-4105: privilege escalation due to improper access control in RegisterMachine D-Bus method bsc1259650. - udev: check for invalid chars in various fields received from the kernel bsc1259697. Changelog: cbf8ee66ee machined: reject invalid...