upgrade jenkins.ovirt.org to 2.89.4 LTS

Description

Jenkins 2.89.3 LTS is out, our instance needs to be updated.
There is also a new security advisory out so we will bump plugin versions:
https://jenkins.io/security/advisory/2018-01-22/

Assignee

Evgheni Dereveanchin

Reporter

Evgheni Dereveanchin

Blocked By

waiting for 4.2.1 to be released first

Priority

Medium
Configure