Enable Poseidon sync after commit

spec/db/seeds_spec.rb

@@ -17,6 +17,7 @@ describe 'seeds' do
       ActiveRecord::Base.establish_connection(:test)
     }
     allow_any_instance_of(ExecutionEnvironment).to receive(:working_docker_image?).and_return true
+    allow_any_instance_of(ExecutionEnvironment).to receive(:sync_runner_environment).and_return true
   end
 
   describe 'execute db:seed', cleaning_strategy: :truncation do