ipatests: test_user_permissions: test_selinux_user_optimized Paramiko=>OpenSSH
Paramiko is not compatible with FIPS.
Migrate test_selinux_user_optimized to the OpenSSH CLI SSH(1).
Rationale: this is exactly what clients use.
Fixes: https://pagure.io/freeipa/issue/8129
Signed-off-by: François Cami <fcami@redhat.com>
Reviewed-By: Mohammad Rizwan <myusuf@redhat.com>
Reviewed-By: Michal Polovka <mpolovka@redhat.com>