OPENSUSE-SU-2025:20163-1 Security update for grub2

This update for grub2 fixes the following issues: Changes in grub2: - CVE-2025-54771: Fixed grubfileclose does not properly controls the fs refcount bsc1252931 - CVE-2025-54770: Fixed missing unregister call for netsetvlan command may lead to use-after-free bsc1252930 - CVE-2025-61662: Fixed...