Add host and port to TCPStore pyi definition (#84636)
`host` and `port` are already exposed in the `TCPStore` pybind definition, this is a small change adding it in the pyi stub
Differential Revision: [D39311153](https://our.internmc.facebook.com/intern/diff/D39311153)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/84636
Approved by: https://github.com/wz337
