Merge branch 'fix-delete-cleanup' into 'master'

Restore use_transactional_tests value after delete

See merge request gitlab-org/gitlab!68507

spec/support/database_cleaner.rb

@@ -52,6 +52,8 @@ RSpec.configure do |config|
     example.run
 
     delete_from_all_tables!(except: deletion_except_tables)
+
+    self.class.use_transactional_tests = true
   end
 
   config.around(:each, :migration) do |example|
@@ -60,5 +62,7 @@ RSpec.configure do |config|
     example.run
 
     delete_from_all_tables!
+
+    self.class.use_transactional_tests = true
   end
 end