Enable DAST site profiles FF by default

ee/app/controllers/projects/on_demand_scans_controller.rb

@@ -4,7 +4,7 @@ module Projects
   class OnDemandScansController < Projects::ApplicationController
     before_action do
       authorize_read_on_demand_scans!
-      push_frontend_feature_flag(:security_on_demand_scans_site_profiles_feature_flag, project)
+      push_frontend_feature_flag(:security_on_demand_scans_site_profiles_feature_flag, project, default_enabled: true)
     end
 
     def index

ee/config/feature_flags/development/security_on_demand_scans_site_profiles_feature_flag.yml

@@ -4,4 +4,4 @@ introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/38412
 rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/233110
 group: group::dynamic analysis
 type: development
-default_enabled: false
+default_enabled: true