Merge branch 'fix_connection_leak_load_balancer_spec' into 'master'

Fix fake connection leaking for Ci::ApplicationRecord

See merge request gitlab-org/gitlab!74032

spec/lib/gitlab/database/load_balancing/load_balancer_spec.rb

@@ -490,11 +490,20 @@ RSpec.describe Gitlab::Database::LoadBalancing::LoadBalancer, :request_store do
   describe 'primary connection re-use', :reestablished_active_record_base do
     let(:model) { Ci::ApplicationRecord }
 
-    before do
+    around do |example|
+      if Gitlab::Database.has_config?(:ci)
+        example.run
+      else
         # fake additional Database
         model.establish_connection(
           ActiveRecord::DatabaseConfigurations::HashConfig.new(Rails.env, 'ci', ActiveRecord::Base.connection_db_config.configuration_hash)
         )
+
+        example.run
+
+        # Cleanup connection_specification_name for Ci::ApplicationRecord
+        model.remove_connection
+      end
     end
 
     describe '#read' do