Merge branch 'rollout_issue_for_project_similarity_sort' into 'master'

Add URL for rollout issue for project_finder_similarity_sort flag

See merge request gitlab-org/gitlab!44640

config/feature_flags/development/project_finder_similarity_sort.yml

 ---
 name: project_finder_similarity_sort
 introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/43136
-rollout_issue_url:
+rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/263249
 type: development
 group: group::threat_insights
 default_enabled: false