⬆️ Update pyo3 requirement from 0.20 to 0.21

[dependabot[bot]]

Updates the requirements on pyo3 to permit the latest version.

Release notes

Sourced from pyo3's releases.

PyO3 0.21.2

This release contains some fixes to compile-time edge cases for the PyO3 0.21 series:

• A missing deprecation warning for the GIL Ref constructor PySet::empty has now been added.
• #[pymodule] functions will no longer trigger missing_docs lints on their generated code.
• Incorrect implementations of __traverse__ in #[pymethods] will now emit a better error.
• Extension modules on AIX will now link to libpython.

This release also fixes some compile errors for the experimental-async and experimental-declarative-modules features, and corrects some documentation typos.

Thank you to the following users for the improvements:

@​adamreichold @​blmarket @​davidhewitt @​Icxolu @​lfn3 @​messense @​wyfo

Changelog

Sourced from pyo3's changelog.

[0.21.2] - 2024-04-16

Changed

• Deprecate the PySet::empty() gil-ref constructor. #4082

Fixed

• Fix compile error for async fn in #[pymethods] with a &self receiver and more than one additional argument. #4035
• Improve error message for wrong receiver type in __traverse__. #4045
• Fix compile error when exporting a #[pyclass] living in a different Rust module using the experimental-declarative-modules feature. #4054
• Fix missing_docs lint triggering on documented #[pymodule] functions. #4067
• Fix undefined symbol errors for extension modules on AIX (by linking libpython). #4073

[0.21.1] - 2024-04-01

Added

• Implement Send and Sync for PyBackedStr and PyBackedBytes. #4007
• Implement Clone, Debug, PartialEq, Eq, PartialOrd, Ord and Hash implementation for PyBackedBytes and PyBackedStr, and Display for PyBackedStr. #4020
• Add import_exception_bound! macro to import exception types without generating GIL Ref functionality for them. #4027

Changed

• Emit deprecation warning for uses of GIL Refs as #[setter] function arguments. #3998
• Add #[inline] hints on many Bound and Borrowed methods. #4024

Fixed

• Handle #[pyo3(from_py_with = "")] in #[setter] methods #3995
• Allow extraction of &Bound in #[setter] methods. #3998
• Fix some uncovered code blocks emitted by #[pymodule], #[pyfunction] and #[pyclass] macros. #4009
• Fix typo in the panic message when a class referenced in pyo3::import_exception! does not exist. #4012
• Fix compile error when using an async #[pymethod] with a receiver and additional arguments. #4015

[0.21.0] - 2024-03-25

Added

• Add support for GraalPy (24.0 and up). #3247
• Add PyMemoryView type. #3514
• Allow async fn in for #[pyfunction] and #[pymethods], with the experimental-async feature. #3540 #3588 #3599 #3931
• Implement PyTypeInfo for PyEllipsis, PyNone and PyNotImplemented. #3577
• Support #[pyclass] on enums that have non-unit variants. #3582
• Support chrono feature with abi3 feature. #3664
• FromPyObject, IntoPy<PyObject> and ToPyObject are implemented on std::duration::Duration #3670
• Add PyString::to_cow. Add Py<PyString>::to_str, Py<PyString>::to_cow, and Py<PyString>::to_string_lossy, as ways to access Python string data safely beyond the GIL lifetime. #3677
• Add Bound<T> and Borrowed<T> smart pointers as a new API for accessing Python objects. #3686
• Add PyNativeType::as_borrowed to convert "GIL refs" to the new Bound smart pointer. #3692

... (truncated)

Commits

• a646a82 release: 0.21.2
• bd15f92 Deprecate the PySet::empty gil-ref constructor (#4082)
• 4f7c706 Suppress non_local_definitions lint as we often want the non-local effects in...
• 3f6faf0 Extend guide on interaction between method receivers and lifetime elision. (#...
• 4e13c0e Link libpython for AIX target (#4073)
• e501377 fix declarative-modules compile error (#4054)
• fd18955 add #[doc(hidden)] to the Rust module created by #[pymodule] (#4067)
• e174a04 Minor: Fix a typo in Contributing.md (#4066)
• a8abe50 build(deps): bump peaceiris/actions-gh-pages from 3 to 4 (#4062)
• 68d1973 Fix typo (#4052)
• Additional commits viewable in compare view

You can trigger a rebase of this PR by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually - `@dependabot show ignore conditions` will show all of the ignore conditions of the specified dependency - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)

Note Automatic rebases have been disabled on this pull request as it has been open for over 30 days.

[dependabot[bot]]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.