Add support for `typing.Never` #5509

Job	Run time
rust benchmarks	3m 5s
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
build sdist	24s
build-wasm-emscripten	2m 35s
coverage	2m 2s
lint	50s
test-debug 3.13	51s
test-debug pypy3.10	1m 1s
test MSRV	3m 32s
test on ubuntu	1m 53s
test-pydantic-integration	1m 16s
test on macos	1m 48s
test 3.8	1m 39s
test on windows	4m 31s
test 3.9	1m 55s
test 3.10	1m 30s
test 3.11	1m 42s
test 3.12	1m 33s
test 3.13	1m 34s
test pypy3.9	1m 58s
test pypy3.10	2m 3s
test build on ${{ matrix.os }}	0s
test build on ${{ matrix.target }}-${{ matrix.distro }}	0s
inspect-pypi-assets	0s
check	4s
release	0s
	37m 46s

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