numpy.int64 type is not serialized correctly in Python 3.11 and Python 3.12

[liferoad]

Fixes #33020 and #33021. Basically, Beam should return TypeError like TypeError: Unable to deterministically encode '2000-01-01' of type '<class 'numpy.datetime64'>', please provide a type hint for the input of 'GroupByKey' [while running 'CreatePInput0/Map(decode)']. The user needs to define their own deterministic coder to use this type as the groupby key.

This is a hacky fix by checking whether __getstate__ returns reasonable results.

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