bump to PyO3 0.22.6 #5423

Job	Run time
coverage	1m 12s
test MSRV	3m 41s
test on ubuntu	2m 23s
test 3.8	1m 40s
test on macos	1m 50s
test 3.9	1m 45s
test on windows	3m 47s
test 3.10	1m 53s
rust benchmarks	2m 51s
test 3.11	1m 42s
test 3.12	1m 43s
build sdist	25s
build-wasm-emscripten	2m 30s
test 3.13	1m 38s
lint	1m 7s
test-debug 3.13	1m 2s
test pypy3.9	2m 14s
test-debug pypy3.10	1m 5s
test-pydantic-integration	1m 23s
test pypy3.10	2m 2s
build pgo-optimized on ${{ matrix.os }} / ${{ matrix.interpreter }}	0s
build on ${{ matrix.os }} (${{ matrix.target }} - ${{ matrix.interpreter \|\| 'all' }}${{ (((matrix.os == 'linux') && format(' - {0}', (((matrix.manylinux == 'auto') && 'manylinux') \|\| matrix.manylinux))) \|\| '') }})	0s
test build on ${{ matrix.target }}-${{ matrix.distro }}	0s
test build on ${{ matrix.os }}	0s
inspect-pypi-assets	0s
check	7s
release	0s
	38m 0s

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