sm2

Bump `hybrid-array` to v0.2.0-rc.11; MSRV 1.81 #457

Job	Run time
build (1.81.0, thumbv7em-none-eabi)	30s
doc	56s
build (1.81.0, wasm32-unknown-unknown)	26s
test (i686-unknown-linux-gnu, 1.81.0, sudo apt update && sudo apt install gcc-multilib)	1m 9s
build (stable, thumbv7em-none-eabi)	21s
build (stable, wasm32-unknown-unknown)	21s
test (i686-unknown-linux-gnu, stable, sudo apt update && sudo apt install gcc-multilib)	59s
test (x86_64-unknown-linux-gnu, 1.81.0)	45s
test (x86_64-unknown-linux-gnu, stable)	38s
	6m 5s

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