@jenkins-maekawa must approve the MR iff all her tests are passed

[LWisteria]

https://github.com/fixstars/clpy/issues/10#issuecomment-406131027

Current CI system @jenkins-maekawa tests in two environment. However she ignores the test result which finished at first and approves the MR if the test which finished at last is passed.

It's better not to approve if a one test is failed, to approve if and only if both tests is passed.