Merge branch 'sh-jira-use-first-ref-by-oid-ff-default' into 'master'

Default jira_use_first_ref_by_oid feature flag to true

See merge request gitlab-org/gitlab!73510

config/feature_flags/development/jira_use_first_ref_by_oid.yml

@@ -5,4 +5,4 @@ rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/343585
 milestone: '14.5'
 type: development
 group: group::integrations
-default_enabled: false
+default_enabled: true