Title: #6146: [Backport][ipa-4-9] Remove deprecation warning when installing a CA
This PR was opened automatically because PR #6122 was pushed to master and backport to
ipa-4-9 is required.
To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/6146/head:pr6146
git checkout pr6146