Enable new vulnerability report project filter by default

Changelog: added
MR: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/68456

config/feature_flags/development/vuln_report_new_project_filter.yml

@@ -2,7 +2,7 @@
 name: vuln_report_new_project_filter
 introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/55745
 rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/334380
-milestone: '14.2'
+milestone: '14.3'
 type: development
 group: group::threat insights
-default_enabled: false
+default_enabled: true