update gloo submodule (#45008)
Summary:
Revert accidental gloo submodule changes in https://github.com/pytorch/pytorch/issues/41977
Pull Request resolved: https://github.com/pytorch/pytorch/pull/45008
Reviewed By: malfet
Differential Revision: D23799892
Pulled By: ngimel
fbshipit-source-id: e8dab244c6abad32ed60efe3c26cab40837e57c8
