Add lax_str and lax_int support for enum values not inherited from str/int #3828

Job	Run time
build pgo-optimized on ${{ matrix.platform \|\| matrix.os }} (${{ matrix.interpreter }} - ${{ matrix.target }} - ${{ matrix.manylinux \|\| 'auto' }})	0s
build on ${{ matrix.platform \|\| matrix.os }} (${{ matrix.target }} - ${{ matrix.manylinux \|\| 'auto' }})	0s
rust benchmarks	6m 37s
build sdist	21s
build-wasm-emscripten	4m 15s
coverage	3m 34s
lint	1m 22s
test-debug 3.11	1m 32s
test on ubuntu	3m 22s
test-pydantic-integration	3m 4s
test on macos	6m 11s
test-debug pypy3.10	2m 24s
test on windows	5m 50s
test 3.7	2m 55s
test 3.8	3m 39s
test 3.9	4m 18s
test 3.10	3m 3s
test 3.11	3m 13s
test 3.12-dev	3m 23s
test pypy3.7	3m 50s
test pypy3.8	3m 15s
test pypy3.9	3m 52s
test pypy3.10	4m 3s
test build on ${{ matrix.os }}	0s
test build on ${{ matrix.target }}-${{ matrix.distro }}	0s
inspect-pypi-assets	0s
check	3s
release	0s
	1h 14m 6s

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