[tests] bump k8s e2e test to 1.29

Author: kayrus

tests/playbooks/test-csi-cinder-e2e.yaml

@@ -4,7 +4,7 @@
   gather_facts: true
 
   vars:
-    e2e_test_version: v1.25.4
+    e2e_test_version: v1.29.0
     user: stack
     github_pr: 123
     global_env: {}