Validate default values at schema definition #5544

Job	Run time
build pgo-optimized on ${{ matrix.os }} / ${{ matrix.interpreter }}	0s
rust benchmarks	2m 40s
build sdist	19s
build on ${{ matrix.os }} (${{ matrix.target }} - ${{ matrix.interpreter \|\| 'all' }}${{ (((matrix.os == 'linux') && format(' - {0}', (((matrix.manylinux == 'auto') && 'manylinux') \|\| matrix.manylinux))) \|\| '') }})	0s
build-wasm-emscripten	2m 16s
coverage	1m 13s
lint	48s
test-debug 3.13	48s
test MSRV	2m 46s
test-debug pypy3.10	1m 10s
test on ubuntu	1m 59s
test-pydantic-integration	1m 13s
test 3.8	1m 42s
test 3.9	1m 44s
test on macos	1m 58s
test 3.10	1m 40s
test on windows	4m 9s
test 3.11	1m 36s
test 3.12	1m 34s
test 3.13	1m 33s
test pypy3.9	1m 59s
test pypy3.10	2m 9s
test build on ${{ matrix.target }}-${{ matrix.distro }}	0s
test build on ${{ matrix.os }}	0s
inspect-pypi-assets	0s
check	4s
release	0s
	35m 20s

Provide feedback