chore(serde): remove quantity_bool #6028

Job	Run time
check no_std	30s
docs	1m 19s
doctest	3m 9s
clippy	1m 23s
feature-checks	5m 8s
feature-propagation	51s
fmt	17s
test ubuntu-latest stable --no-default-features	2m 39s
wasm-unknown	1m 44s
wasm-wasi	1m 56s
test ubuntu-latest stable	2m 24s
test ubuntu-latest stable --all-features	2m 57s
test ubuntu-latest nightly --no-default-features	1m 48s
test ubuntu-latest nightly	1m 38s
test ubuntu-latest nightly --all-features	2m 35s
test ubuntu-latest 1.81 --no-default-features	1m 39s
test ubuntu-latest 1.81	1m 30s
test windows-latest stable --no-default-features	6m 23s
test windows-latest stable	7m 13s
test windows-latest stable --all-features	6m 56s
test windows-latest nightly --no-default-features	5m 18s
test windows-latest nightly	4m 28s
test windows-latest nightly --all-features	6m 51s
test windows-latest 1.81 --no-default-features	4m 51s
test windows-latest 1.81	4m 22s
deny / cargo deny check	24s
ci success	2s
	1h 20m 15s

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