fix: support hex values for conditional options #5523

Job	Run time
doctest	3m 1s
wasm-unknown	2m 43s
clippy	1m 24s
check no_std	51s
feature-checks	8m 29s
wasm-wasi	3m 28s
test ubuntu-latest stable --no-default-features	2m 30s
docs	1m 3s
fmt	14s
test ubuntu-latest stable	2m 38s
test ubuntu-latest stable --all-features	3m 16s
test ubuntu-latest nightly --no-default-features	1m 19s
test ubuntu-latest nightly	1m 24s
test ubuntu-latest nightly --all-features	2m 4s
test ubuntu-latest 1.81 --no-default-features	1m 32s
test ubuntu-latest 1.81	1m 42s
test windows-latest stable --no-default-features	4m 53s
test windows-latest stable	5m 53s
test windows-latest stable --all-features	5m 53s
test windows-latest nightly --no-default-features	4m 27s
test windows-latest nightly	2m 54s
test windows-latest nightly --all-features	4m 24s
test windows-latest 1.81 --no-default-features	3m 10s
test windows-latest 1.81	4m 1s
deny / cargo deny check	24s
ci success	1s
	1h 13m 38s

Provide feedback