CLSA-2025-1763647564 xorg-x11-server-Xwayland: Fix of 3 CVEs

CVE-2024-0409: fix incorrect cursor private key usage in Xwayland/Xephyr that caused XSELINUX devPrivates corruption - CVE-2025-26597: fix buffer overflow in XkbChangeTypesOfKey by properly resizing key syms and actions when nGroups is zero - CVE-2025-26594: fix root cursor lifetime handling to...