update to PyO3 0.19.1

[davidhewitt]

Change Summary

Update PyO3 to 0.19.1 to pick up the fix for PyO3's set memory leak and support for PyPy 3.10.

Related issue number

N/A

Checklist

• Unit tests for the changes exist
• Documentation reflects the changes where applicable
• Pydantic tests pass with this pydantic-core (except for expected changes)
• My PR is ready to review, please add a comment including the phrase "please review" to assign reviewers

[codecov]

Codecov Report

Merging #731 (a7f3643) into main (d285975) will not change coverage.
The diff coverage is n/a.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #731   +/-   ##
=======================================
  Coverage   93.63%   93.63%           
=======================================
  Files          99       99           
  Lines       13913    13913           
  Branches       25       25           
=======================================
  Hits        13028    13028           
  Misses        879      879           
  Partials        6        6           

---

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[codspeed-hq]

CodSpeed Performance Report

Merging #731 will improve performances by 11.39%

_{Comparing dh/pyo3-0.19.1 (a7f3643) with main (d285975)}

Summary

🔥 1 improvements
✅ 125 untouched benchmarks

Benchmarks breakdown

	Benchmark	main	dh/pyo3-0.19.1	Change
🔥	test_set_of_ints_core_json_duplicates	5.4 ms	4.8 ms	+11.39%

[adriangb]

Can we also incorporate PyO3/pyo3#3156 to replace

pydantic-core/src/input/return_enums.rs

Lines 200 to 213 in d76812a

	impl BuildSet for &PyFrozenSet {
	fn build_add(&self, item: PyObject) -> PyResult<()> {
	unsafe {
	py_error_on_minusone(
	self.py(),
	ffi::PySet_Add(self.as_ptr(), item.to_object(self.py()).as_ptr()),
	)
	}
	}
	fn build_len(&self) -> usize {
	self.len()
	}
	}

?

[davidhewitt]

Can we also incorporate PyO3/pyo3#3156 to replace

pydantic-core/src/input/return_enums.rs

Lines 200 to 213 in d76812a

	impl BuildSet for &PyFrozenSet {
	fn build_add(&self, item: PyObject) -> PyResult<()> {
	unsafe {
	py_error_on_minusone(
	self.py(),
	ffi::PySet_Add(self.as_ptr(), item.to_object(self.py()).as_ptr()),
	)
	}
	}
	fn build_len(&self) -> usize {
	self.len()
	}
	}

?

I took a look at this, but PyFrozenSetBuilder doesn't expose len(). I'll take a look at adding to PyO3 upstream, maybe when we get to PyO3 0.20 :)