fix: `no_std` and workflow #1966

Job	Run time
wasm	41s
feature-checks	5m 42s
clippy	50s
check no_std	58s
miri --no-default-features	3m 54s
miri	3m 51s
test ubuntu-latest stable --no-default-features	1m 0s
docs	32s
fmt	13s
test ubuntu-latest stable	1m 3s
miri --all-features	5m 3s
test ubuntu-latest beta --no-default-features	1m 3s
test ubuntu-latest beta	1m 3s
test ubuntu-latest nightly --no-default-features	50s
test ubuntu-latest nightly	53s
test ubuntu-latest 1.79 --no-default-features	20s
test ubuntu-latest 1.79	15s
test windows-latest stable --no-default-features	2m 14s
test windows-latest stable	1m 57s
test windows-latest beta --no-default-features	1m 55s
test windows-latest beta	1m 57s
test windows-latest nightly --no-default-features	1m 42s
test windows-latest nightly	2m 3s
test windows-latest 1.79 --no-default-features	46s
test windows-latest 1.79	47s
test ubuntu-latest 1.79 --features json	15s
test windows-latest 1.79 --features json	48s
test ubuntu-latest stable --all-features	1m 22s
test ubuntu-latest beta --all-features	1m 16s
test ubuntu-latest nightly --all-features	1m 9s
	46m 22s

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