Bump pyo3 from 0.21.1 to 0.21.2 #4565

Job	Run time
coverage	2m 44s
test-debug 3.11	58s
test-debug pypy3.10	1m 28s
test MSRV	2m 43s
test 3.8	2m 16s
rust benchmarks	2m 59s
test 3.9	2m 39s
test 3.10	2m 31s
build sdist	11s
test 3.11	2m 24s
test 3.12	2m 31s
build-wasm-emscripten	3m 12s
test pypy3.9	3m 1s
lint	1m 25s
test pypy3.10	3m 13s
test on ubuntu	2m 29s
test-pydantic-integration	1m 41s
test on macos	2m 57s
build on ${{ matrix.os }} (${{ matrix.target }} - ${{ matrix.interpreter \|\| 'all' }}${{ (((matrix.os == 'linux') && format(' - {0}', (((matrix.manylinux == 'auto') && 'manylinux') \|\| matrix.manylinux))) \|\| '') }})	0s
test on windows	6m 1s
build pgo-optimized on ${{ matrix.os }} / ${{ matrix.interpreter }}	0s
test build on ${{ matrix.target }}-${{ matrix.distro }}	0s
test build on ${{ matrix.os }}	0s
inspect-pypi-assets	0s
check	2s
release	0s
	47m 25s

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