Fix `ValueError` on year zero #5525

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 57s
build pgo-optimized on ${{ matrix.os }} / ${{ matrix.interpreter }}	0s
build sdist	19s
build-wasm-emscripten	2m 19s
coverage	1m 14s
lint	1m 12s
test-debug 3.13	40s
test-debug pypy3.10	1m 3s
test MSRV	3m 17s
test on ubuntu	2m 15s
test on macos	1m 45s
test on windows	4m 56s
test-pydantic-integration	1m 17s
test 3.8	1m 39s
test 3.9	1m 59s
test 3.10	1m 42s
test 3.11	2m 3s
test 3.12	1m 39s
test 3.13	1m 42s
test pypy3.9	2m 20s
test pypy3.10	2m 1s
test build on ${{ matrix.target }}-${{ matrix.distro }}	0s
test build on ${{ matrix.os }}	0s
inspect-pypi-assets	0s
check	2s
release	0s
	38m 21s

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