MGASA-2025-0235 Updated kernel, kmod-virtualbox & kmod-xtables-addons packages fix security vulnerabilities

Upstream kernel version 6.6.105 fixes bugs and vulnerabilities. The kmod-virtualbox & kmod-xtables-addons packages have been updated to work with this new kernel. The newer meta-task and mageia-repos packages are required to simplify the correct installation of the kernel-stable-userspace-headers...