Detect Geo secondary role properly in spec/support/db_cleaner.rb

Signed-off-by: Rémy Coutable <remy@rymai.me>

spec/support/db_cleaner.rb

@@ -34,7 +34,7 @@ RSpec.configure do |config|
   end
 
   def setup_database_cleaner
-    if Rails.configuration.respond_to?(:geo_database)
+    if Gitlab::Geo.secondary_role_enabled?
       DatabaseCleaner[:active_record, { connection: Geo::BaseRegistry }]
     end