Update pyo3 requirement from 0.18 to 0.19

[dependabot]

Updates the requirements on pyo3 to permit the latest version.

Release notes

Sourced from pyo3's releases.

PyO3 0.18.3

This release fixes an issue with PyDateTime::type_object() incorrectly returning the type object for PyDate, which would cause some is_instance checks to behave incorrectly.

In addition, this release contains a handful of minor quality-of-life corrections over PyO3 0.18.2.

Thank you to the following users for the improvements:

@​adamreichold @​davidhewitt @​decathorpe @​ijl @​mejrs @​messense @​sollyucko @​willstott101 @​wjones127

Changelog

Sourced from pyo3's changelog.

[0.18.3] - 2023-04-13

Added

• Add GILProtected<T> to mediate concurrent access to a value using Python's global interpreter lock (GIL). #2975
• Support PyASCIIObject / PyUnicode and associated methods on big-endian architectures. #3015
• Add FFI definition _PyDict_Contains_KnownHash() for CPython 3.10 and up. #3088

Fixed

• Fix compile error for #[pymethods] and #[pyfunction] called "output". #3022
• Fix compile error in generated code for magic methods implemented as a #[staticmethod]. #3055
• Fix is_instance for PyDateTime (would incorrectly check for a PyDate). #3071
• Fix upstream deprecation of PyUnicode_InternImmortal since Python 3.10. #3071

[0.18.2] - 2023-03-24

Packaging

• Disable default features of chrono to avoid depending on time v0.1.x. #2939

Added

• Implement IntoPy<PyObject>, ToPyObject and FromPyObject for Cow<[u8]> to efficiently handle both bytes and bytearray objects. #2899
• Implement IntoPy<PyObject>, ToPyObject and FromPyObject for Cell<T>. #3014
• Add PyList::to_tuple(), as a convenient and efficient conversion from lists to tuples. #3042
• Add PyTuple::to_list(), as a convenient and efficient conversion from tuples to lists. #3044

Changed

• Optimize PySequence conversion for list and tuple inputs. #2944
• Improve exception raised when creating #[pyclass] type object fails during module import. #2947
• Optimize PyMapping conversion for dict inputs. #2954
• Allow create_exception! to take a dotted.module to place the exception in a submodule. #2979

Fixed

• Fix a reference counting race condition affecting PyObjects cloned in allow_threads blocks. #2952
• Fix clippy::redundant_closure lint on default arguments in #[pyo3(signature = (...))] annotations. #2990
• Fix non_snake_case lint on generated code in #[pyfunction] macro. #2993
• Fix some FFI definitions for the upcoming PyPy 3.10 release. #3031

[0.18.1] - 2023-02-07

Added

• Add PyErr::write_unraisable(). #2889
• Add Python::Ellipsis() and PyAny::is_ellipsis() methods. #2911

... (truncated)

Commits

• 5cdc133 release: 0.18.3
• a8dd453 PEP 623: wstr, wstr_length, state changes
• 9ebdcb7 Define _PyDict_Contains_KnownHash() FFI for CPython 3.10 or later
• 7cc2644 Fix redundant imports in doc tests thereby fixing the careful CI job.
• 8498003 docs: show pattern for self.class.name in repr
• 63ff262 fix typo DateType -> DateTimeType, fixes #3069
• 48c0655 Add wrapper for PyASCIIObject state bitfield accesses based on bindgen
• ce288e6 CI: Pin inventory to 0.3.4 in MSRV job
• 9dccad3 Emit a better error for bad argument names
• 24d2ddd Fix function name shadowing
• Additional commits viewable in compare view

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