build(deps): bump ecdsa from 0.16.7 to 0.16.8 (#912) #1816

Job	Run time
build (1.65.0, thumbv7em-none-eabi)	1m 43s
build (1.65.0, wasm32-unknown-unknown)	1m 56s
build (stable, thumbv7em-none-eabi)	44s
build (stable, wasm32-unknown-unknown)	1m 1s
cross (armv7-unknown-linux-gnueabihf, 1.65.0)	3m 6s
cross (armv7-unknown-linux-gnueabihf, stable)	2m 8s
cross (aarch64-unknown-linux-gnu, 1.65.0)	2m 51s
cross (aarch64-unknown-linux-gnu, stable)	2m 33s
cross (powerpc-unknown-linux-gnu, 1.65.0)	3m 27s
cross (powerpc-unknown-linux-gnu, stable)	2m 40s
doc	36s
test (i686-unknown-linux-gnu, 1.65.0, sudo apt update && sudo apt install gcc-multilib)	3m 35s
test (i686-unknown-linux-gnu, stable, sudo apt update && sudo apt install gcc-multilib)	2m 39s
test (x86_64-unknown-linux-gnu, 1.65.0)	3m 4s
test (x86_64-unknown-linux-gnu, stable)	2m 11s
	34m 14s

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