Version pickling is broken: TypeError on pickle.loads

Version pickling is broken: TypeError on pickle.loads: a task in repo2rlenv-swe-smith (Harbor dataset). Pickling and unpickling packaging.version.Version objects raises a TypeError . This affects both freshly created Version instances and pickles produced by older versions of the library.

The task

Pickling and unpickling `packaging.version.Version` objects raises a `TypeError`. This affects both freshly created `Version` instances and pickles produced by older versions of the library.

Part of FineEnvs/repo2rlenv-swe-smith.