The mksquashfs version that supports the xattrs-exclude flag is 4.6.1, but the logic excluded the version because of a strict (greater than) comparison.
[Describe the testing you have done before submitting this PR. Please include both the commands you issued as well as the output you got.]
[ ] Changelog entries added in the respective changelog/ directory (user-facing change, bug fix, security fix, update)
[ ] Inspected CI output for image differences: /boot and /usr size, packages, list files for any missing binaries, kernel modules, config files, kernel modules, etc.
The mksquashfs version that supports the xattrs-exclude flag is 4.6.1, but the logic excluded the version because of a strict (greater than) comparison.
See: https://github.com/flatcar/sysext-bakery/pull/60/commits/d1419fc1254f9723a3614811bdd29f9d6a3bba9d
Testing done
[Describe the testing you have done before submitting this PR. Please include both the commands you issued as well as the output you got.]
changelog/directory (user-facing change, bug fix, security fix, update)/bootand/usrsize, packages, list files for any missing binaries, kernel modules, config files, kernel modules, etc.