* deprecate GIL Refs in function arguments
* fix deprecated gil refs in function arguments
* add notes on deprecations limitations to migration guide
* Apply suggestions from code review
Co-authored-by: Icxolu <10486322+Icxolu@users.noreply.github.com>
* review: Icxolu
* fix proto method extract failure for option
* fix gil refs in examples
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Co-authored-by: Icxolu <10486322+Icxolu@users.noreply.github.com>
* deprecate the use of `PyCell` in favor of `Bound` and `Py`
* update `FromPyObject` for `T: PyClass + Clone` impl
* move `PyCell` deprecation to the `gil-refs` feature gate and add a migration note