Breaking change: Change `metadata` type hint from `Any` -> `Dict[str, Any] | None` #4947

Job	Run time
build on ${{ matrix.os }} (${{ matrix.target }} - ${{ matrix.interpreter \|\| 'all' }}${{ (((matrix.os == 'linux') && format(' - {0}', (((matrix.manylinux == 'auto') && 'manylinux') \|\| matrix.manylinux))) \|\| '') }})	0s
build pgo-optimized on ${{ matrix.os }} / ${{ matrix.interpreter }}	0s
rust benchmarks	2m 8s
build sdist	13s
build-wasm-emscripten	2m 29s
coverage	1m 57s
lint	44s
test-debug 3.11	48s
test MSRV	2m 44s
test-debug pypy3.10	1m 21s
test on ubuntu	2m 25s
test on macos	3m 2s
test on windows	4m 57s
test-pydantic-integration	1m 36s
test 3.8	2m 21s
test 3.9	2m 15s
test 3.10	2m 33s
test 3.11	1m 58s
test 3.12	2m 11s
test 3.13	2m 8s
test pypy3.9	2m 35s
test pypy3.10	2m 40s
test build on ${{ matrix.os }}	0s
test build on ${{ matrix.target }}-${{ matrix.distro }}	0s
inspect-pypi-assets	0s
check	9s
release	0s
	43m 14s

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