Changes

• Default CPython distributions upgraded. CPython 3.8.13 -> 3.8.15; 3.9.13 -> 3.9.15; 3.10.4 -> 3.10.8. See https://github.com/indygreg/python-build-standalone/releases/tag/20220630, https://github.com/indygreg/python-build-standalone/releases/tag/20220802, https://github.com/indygreg/python-build-standalone/releases/tag/20221002, and https://github.com/indygreg/python-build-standalone/releases/tag/20221106 for additional changes.
• PyO3 Rust crate(s) upgraded from 0.16.5 to 0.17.1.
• The mechanism for passing custom arguments to the linker for exporting symbols from built executables has transitioned from using .cargo/config files to emitting cargo:rustc-link-arg=FLAG lines from Cargo build scripts. There should be no change in behavior. Generated Rust projects with a .cargo/config overriding rustflags to pass linker arguments can safely delete these lines, as they are no longer necessary.
• SETUPTOOLS_USE_DISTUTILS=stdlib is now unconditionally set when invoking Python packaging tools. Previously, it was only set when statically linking libpython. The new behavior ensures that we consistently use the distutils from the Python stdlib and not the distutils in setuptools. The reason for this change was to work around a change in behavior in modern setuptools/distutils resulting in extension module building failing due to new failures resolving the path to Python.h.