Merge branch...

Merge branch '390887-update-the-jira_issue_key_regex-to-conform-to-the-jira-issue-key-default-format' into 'master'

Fix the Jira issue key default format

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/120995



Merged-by: Kerri Miller <kerrizor@kerrizor.com>
Approved-by: Kerri Miller <kerrizor@kerrizor.com>
Approved-by: Joseph Wambua <jjoshua@gitlab.com>
Co-authored-by: bmarjanovic <bmarjanovic@gitlab.com>