Update CNTT regex according to latest tempest changes

Update CNTT regex according to latest tempest changes

It skips all the new feature testing untill they are mandatory in CNTT
- [compute_feature_enabled] xenapi_apis [1]
- [identity_feature_enabled] access_rules [2]
- [image_feature_enabled] import_image [3]
- [volume_feature_enabled] extend_attached_encrypted_volume [4]

[1] https://review.opendev.org/c/openstack/tempest/+/749527
[2] https://review.opendev.org/c/openstack/tempest/+/699519
[3] https://review.opendev.org/c/openstack/tempest/+/742546
[4] https://review.opendev.org/c/openstack/tempest/+/706904

Change-Id: I161360f882138b46da56b78084a70b244cd1c53d
Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>