Security update for grub2

This update for grub2 fixes the following issues: CVE-2025-4382: Fixed TPM auto-decryption data exposure bsc1242971 Filter out the non-subvolume btrfs mount points when creating the relative path bsc1239674 CVE-2024-45781: Fixed ufs strcpy overflow bsc1233617 CVE-2024-56737: Fixed heap-based buff...