bump the version

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
update the changelog

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
1.5.4
Call custom_repo with reponame, not repo_name

Fixes: #8558
Signed-off-by: Dan Mick <dan.mick@inktank.com>
Merge pull request #198 from ceph/wip-8558

Call custom_repo with reponame, not repo_name