Provide different storage options in PyTorch checkpoint benchmarks.

PiperOrigin-RevId: 882390022

Author: lyglst

checkpoint/CHANGELOG.md

@@ -10,7 +10,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 
 - #v1 Add `use_load_and_broadcast` option.
-- Add PyTorch DCP (Distributed Checkpoint) to the benchmark suite.
+- Add PyTorch DCP (Distributed Checkpoint) to the benchmark suite, with GCS
+connector and fsspec options.
 
 ### Removed