Cap cinder-tempest-plugin version for stable/train

We are capping stable/train testing with Tempest
26.1.0 (choosing 26.1.0 because of bug#1955418)
- https://review.opendev.org/c/openstack/tempest/+/822339

To have compatible cinder-tempest-plugin version for
Tempest 26.1.0 and stable/train testing, we need to cap
it with 1.3.0.

Change-Id: Ie78224ee67e9731f0c61e02c6a64bfa9e43fbef0
1 file changed