Fix: ensure consistent dtype and eval mode in pipeline save/load tests (#13339)
* Fix: ensure consistent dtype and eval mode in pipeline save/load tests
* Modify according to the comments
* Update according to the comments
* Update comment
* Code quality
* cast buffers to torch.float16
* conflict
* Fix
---------
Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>