[c10] make intrusive_ptr available as a pybind holder type (#44492)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/44492
Test Plan: Imported from OSS
Reviewed By: smessmer
Differential Revision: D23632278
Pulled By: wanchaol
fbshipit-source-id: b9796e15074d68a347de443983abf7f052a3cdfe
