Redis Sentinel modifies its config.
Since we now check config in check-containers,
the redis_sentintel container is restarted each time.
This patch together with kolla patch fixes this issue.
Closes-Bug: #1967664
Depends-On: https://review.opendev.org/c/openstack/kolla/+/840954
Change-Id: Ia76329cb851d266cd888f51b7f70a4cdc40e3ac3