Comment 4 for bug 1988205

Reviewed: https://review.opendev.org/c/openstack/puppet-horizon/+/855298
Committed: https://opendev.org/openstack/puppet-horizon/commit/5660159a6e2237c8bcdc66167873b6534da1d935
Submitter: "Zuul (22348)"
Branch: master

commit 5660159a6e2237c8bcdc66167873b6534da1d935
Author: Takashi Kajinami <email address hidden>
Date: Wed Aug 31 08:45:29 2022 +0900

    Ensure pymemcache library is installed

    The pymemcache library should be installed when pymemcache backend is
    used but this library is not installed by the package dependencies and
    should be installed additionally.

    This also ensures the cache libraries are installed during package
    installation phase, so that the libraries are available when horizon
    is started.

    Closes-Bug: #1988205
    Change-Id: I90cd9d9e1276fae71fcb9cbc7ba95b8839690dbd