Upstream Tracing

[0x676e67]

1. issues

• fix multithreaded access to freelist pyclasses PyO3/pyo3#4902
• conversions and #[pyo3(get, set)] for atomic integers PyO3/pyo3#4668
• [Python] Multiple warnings and asserts triggered in debug CPython 3.11 apache/arrow#33765 (comment)
• Tracking issue for no-gil/freethreaded work PyO3/pyo3#4265
• Improve performance when converting python bytes/bytearray to Vec<u8> PyO3/pyo3#2888
• 0.21.0-beta.0: can't extract to Vec<Cow<'_, [u8]>> without gil-refs feature PyO3/pyo3#3990
• async fn tracking issue PyO3/pyo3#1632

2. discussions

• Seg Faults with PyPy PyO3/pyo3#2781