k256

p521: fix CI workflow (#1009) #2100

Job	Run time
benches (1.65.0)	3m 3s
benches (stable)	1m 21s
build (1.65.0, thumbv7em-none-eabi)	2m 25s
build (1.65.0, wasm32-unknown-unknown)	2m 25s
cross (armv7-unknown-linux-gnueabihf, 1.65.0)	3m 7s
doc	52s
cross (armv7-unknown-linux-gnueabihf, stable)	1m 24s
cross (aarch64-unknown-linux-gnu, 1.65.0)	3m 4s
build (stable, thumbv7em-none-eabi)	48s
cross (aarch64-unknown-linux-gnu, stable)	1m 30s
test (i686-unknown-linux-gnu, 1.65.0, sudo apt update && sudo apt install gcc-multilib)	4m 8s
build (stable, wasm32-unknown-unknown)	46s
cross (powerpc-unknown-linux-gnu, 1.65.0)	2m 59s
test (i686-unknown-linux-gnu, stable, sudo apt update && sudo apt install gcc-multilib)	1m 50s
cross (powerpc-unknown-linux-gnu, stable)	1m 25s
test (x86_64-unknown-linux-gnu, 1.65.0)	3m 31s
test (x86_64-unknown-linux-gnu, stable)	1m 20s
	35m 58s

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