ActiveChecks: Fix chroot for create-user check

[andriishestakov]

SYS_CHROOT is required in ActiveChecks to allow chroot to jail and create user

[Uburro]

Can you show us a case where it doesn't work?

[andriishestakov]

create-user-soperatorchecks job fails with this:

Creating soperatorchecks user...
+ echo 'Creating soperatorchecks user...'
+ chroot /mnt/jail /bin/bash -s
chroot: cannot change root directory to '/mnt/jail': Operation not permitted

SYS_CHROOT is not default in crio