lxc-test-checkpoint-restore in ubuntu_lxc was skipped due to missing criu

[Po-Hsu Lin]

Issue found with Jammy.

This test was skipped due to "criu" was not installed

Test log:
START ubuntu_lxc.lxc-test-checkpoint-restore ubuntu_lxc.lxc-test-checkpoint-restore timestamp=1666084196 timeout=1200 localtime=Oct 18 09:09:56
 Persistent state client._record_indent now set to 2
 Persistent state client.unexpected_reboot now set to ('ubuntu_lxc.lxc-test-checkpoint-restore', 'ubuntu_lxc.lxc-test-checkpoint-restore')
 Waiting for pid 52644 for 1200 seconds
 System python is too old, crash handling disabled
 Running '/tmp/lxc-pkg-ubuntu/src/tests/lxc-test-checkpoint-restore'
 /tmp/lxc-pkg-ubuntu/src/tests/lxc-test-checkpoint-restore: 22: criu: not found
 SKIP: skipping test because no (or wrong) criu installed.
           GOOD ubuntu_lxc.lxc-test-checkpoint-restore ubuntu_lxc.lxc-test-checkpoint-restore timestamp=1666084198 localtime=Oct 18 09:09:58 completed successfully

We will need to check package availability for each release before adding this package to the required package list.