chore: release 0.8.15 #2198

Job	Run time
miri --no-default-features	5m 22s
test ubuntu-latest stable --no-default-features	1m 23s
miri	5m 25s
test ubuntu-latest stable	1m 7s
miri --all-features	7m 35s
test ubuntu-latest nightly --no-default-features	48s
test ubuntu-latest nightly	47s
check no_std	51s
test ubuntu-latest 1.81 --no-default-features	35s
clippy	44s
test ubuntu-latest 1.81	38s
test windows-latest stable --no-default-features	3m 5s
docs	30s
test windows-latest stable	3m 44s
features stable	2m 11s
test windows-latest nightly --no-default-features	2m 31s
features stable --all-targets	3m 12s
test windows-latest nightly	2m 25s
features nightly	1m 34s
features nightly --all-targets	3m 4s
test windows-latest 1.81 --no-default-features	1m 43s
wasm	52s
test windows-latest 1.81	1m 51s
fmt	15s
test ubuntu-latest 1.81 --features json	35s
test windows-latest 1.81 --features json	1m 49s
test ubuntu-latest nightly --all-features	1m 12s
test windows-latest nightly --all-features	2m 31s
ci success	1s
	58m 20s

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