Use `typing_extensions.TypedDict` on Python < 3.12 #4925

Job	Run time
build on ${{ matrix.os }} (${{ matrix.target }} - ${{ matrix.interpreter \|\| 'all' }}${{ (((matrix.os == 'linux') && format(' - {0}', (((matrix.manylinux == 'auto') && 'manylinux') \|\| matrix.manylinux))) \|\| '') }})	0s
rust benchmarks	2m 16s
build pgo-optimized on ${{ matrix.os }} / ${{ matrix.interpreter }}	0s
build sdist	22s
build-wasm-emscripten	2m 22s
coverage	2m 0s
lint	1m 13s
test-debug 3.11	54s
test MSRV	2m 49s
test on ubuntu	2m 39s
test-debug pypy3.10	1m 20s
test on macos	2m 28s
test on windows	3m 42s
test-pydantic-integration	1m 42s
test 3.8	2m 42s
test 3.9	2m 55s
test 3.10	2m 52s
test 3.11	2m 49s
test 3.12	2m 48s
test 3.13	3m 0s
test pypy3.9	3m 10s
test pypy3.10	3m 13s
test build on ${{ matrix.target }}-${{ matrix.distro }}	0s
test build on ${{ matrix.os }}	0s
inspect-pypi-assets	0s
check	3s
release	0s
	47m 19s

Provide feedback