ci: do not limit feature powerset check by depth #4294

Job	Run time
clippy	41s
check no_std	22s
cfg-check	29s
docs	56s
doctest	1m 11s
feature-checks	3m 11s
feature-checks-full	3m 22s
fmt	10s
wasm-unknown	50s
wasm-wasi	1m 16s
test ubuntu-latest stable --no-default-features	1m 22s
test ubuntu-latest stable	1m 24s
test ubuntu-latest stable --all-features	2m 29s
test ubuntu-latest nightly --no-default-features	1m 7s
test ubuntu-latest nightly	1m 12s
test ubuntu-latest nightly --all-features	2m 2s
test ubuntu-latest 1.79 --no-default-features	38s
test ubuntu-latest 1.79	46s
test windows-latest stable --no-default-features	3m 2s
test windows-latest stable	3m 3s
test windows-latest stable --all-features	3m 6s
test windows-latest nightly --no-default-features	3m 5s
test windows-latest nightly	3m 0s
test windows-latest nightly --all-features	3m 5s
test windows-latest 1.79 --no-default-features	2m 48s
test windows-latest 1.79	2m 39s
	47m 16s

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