Move suggested reviewers secret setup to EE config initializers

.rubocop_todo/gitlab/avoid_gitlab_instance_checks.yml

@@ -27,7 +27,6 @@ Gitlab/AvoidGitlabInstanceChecks:
     - 'config/initializers/active_record_transaction_observer.rb'
     - 'config/initializers/active_record_transaction_patches.rb'
     - 'config/initializers/check_forced_decomposition.rb'
-    - 'config/initializers/gitlab_suggested_reviewers_secret.rb'
     - 'config/initializers/rack_multipart_patch.rb'
     - 'config/initializers/validate_puma.rb'
     - 'config/initializers/warden.rb'
@@ -77,6 +76,7 @@ Gitlab/AvoidGitlabInstanceChecks:
     - 'ee/app/workers/gitlab_subscriptions/refresh_seats_worker.rb'
     - 'ee/app/workers/gitlab_subscriptions/schedule_refresh_seats_worker.rb'
     - 'ee/app/workers/update_all_mirrors_worker.rb'
+    - 'ee/config/initializers/gitlab_suggested_reviewers_secret.rb'
     - 'ee/lib/api/code_suggestions.rb'
     - 'ee/lib/api/scim/instance_scim.rb'
     - 'ee/lib/ee/api/namespaces.rb'

config/initializers/gitlab_suggested_reviewers_secret.rb → ee/config/initializers/gitlab_suggested_reviewers_secret.rb

 # frozen_string_literal: true
 
-return unless Gitlab.com? && Gitlab.ee?
+return unless Gitlab.com?
 
 Gitlab::AppliedMl::SuggestedReviewers.ensure_secret!

ee/spec/initializers/gitlab_suggested_reviewers_secret_spec.rb

@@ -6,7 +6,7 @@
   subject { Gitlab::Application.config }
 
   let(:load_suggested_reviewers_secret) do
-    load Rails.root.join('config/initializers/gitlab_suggested_reviewers_secret.rb')
+    load Rails.root.join('ee/config/initializers/gitlab_suggested_reviewers_secret.rb')
   end
 
   context 'when not SAAS' do