redis: cacertificate path can't be customized

[Takashi Kajinami]

Currently tooz does not support passing ca certificate to underlying clients so
the system certificate repository is always used.
We should provide the option to pass specific ca certificate path so that users can
use the own certificate without installing it to the system global repository.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/tooz/+/877890

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/tooz/+/877890
Committed: https://opendev.org/openstack/tooz/commit/38523acdc689adaebb4d302a92721abd14e7d9aa
Submitter: "Zuul (22348)"
Branch: master

commit 38523acdc689adaebb4d302a92721abd14e7d9aa
Author: Takashi Kajinami <email address hidden>
Date: Mon Nov 27 10:13:03 2023 +0900

    Redis: Allow customizing ssl ca certificates path

    This allows users to give ssl_ca_certs argument of redis client so that
    a specific file, instead of the system global certificates, can be
    used.

    Closes-Bug: #2012226
    Change-Id: Id7e76c35c5ce7b22a8261026fe76557d509616b3

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/tooz 6.0.0 release.