- Added support for JIRA issue references in PR body and commit messages
- Supports both short format (PKG-92) and full URL format
- Maintains existing GitHub issue reference support
- JIRA pattern matches https://scylladb.atlassian.net/browse/{PROJECT-ID}
- Allows backporting for PRs that reference JIRA issues with 'fixes' keyword
Fixes: https://github.com/scylladb/scylladb/issues/26955
Closes scylladb/scylladb#26954
(cherry picked from commit 3ade3d8f5b)
Closes scylladb/scylladb#26965