Geo: Release package file verification

See epic for more: https://gitlab.com/groups/gitlab-org/-/epics/1817

ee/app/replicators/geo/package_file_replicator.rb

@@ -11,7 +11,7 @@ module Geo
 
     override :verification_feature_flag_enabled?
     def self.verification_feature_flag_enabled?
-      Feature.enabled?(:geo_package_file_verification)
+      Feature.enabled?(:geo_package_file_verification, default_enabled: :yaml)
     end
 
     def carrierwave_uploader

ee/changelogs/unreleased/mk-release-package-file-verification.yml

+---
+title: 'Geo: Release package file verification'
+merge_request: 54361
+author:
+type: added

ee/config/feature_flags/development/geo_package_file_verification.yml

@@ -5,4 +5,4 @@ rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/271680
 milestone: '13.6'
 type: development
 group: group::geo
-default_enabled: false
+default_enabled: true