Create Jira tickets mirroring Gitlab issues

Either through sprinter.py or https://issues.redhat.com/browse/RIJ-1208, whichever comes first

The idea is that, at least when closing a ticket, we make sure there's a match for it in Jira with "External Issue URL" (customfield_12317242) pointing to the gitlab ticket url, with story point weight (customfield_12310243) defined.

AC:

• Get a Jira token with write permission on https://issues.redhat.com/projects/CKI
• Make sure there's a Jira ticket for every closed Gitlab Issue with "Title", "Story points" and a link back to Gitlab. And also a link in Gitlab pointing to Jira.
• (Optional) sync Gitlab issues with Jira tickets on each update

Fields (Gitlab -> Jira):

• Description (Markdown -> Rich text)
• Weight -> Story Points
• Link to Jira <-> Link to Gitlab
• (Optional) Comments
• (Optional, because we only care about closed tickets) Status