Relax precision constraint on ONNXRuntime._gru_test (#24340)
Summary:
https://github.com/pytorch/pytorch/issues/24268
Pull Request resolved: https://github.com/pytorch/pytorch/pull/24340
Differential Revision: D16833477
Pulled By: bddppq
fbshipit-source-id: d256d6bdd950c38ecc835af848222f03cfc6130c
