ssh-key: bump `dsa` and `rsa` (#455) #1048

Job	Run time
test (1.85.0)	3m 39s
no_std (1.85.0, thumbv7em-none-eabi)	1m 52s
test (stable)	3m 34s
no_std (1.85.0, wasm32-unknown-unknown)	1m 49s
no_std (stable, thumbv7em-none-eabi)	1m 50s
build (x86_64-apple-darwin, macos-latest, stable)	1m 10s
no_std (stable, wasm32-unknown-unknown)	1m 45s
build (x86_64-pc-windows-msvc, windows-latest, stable)	1m 28s
build (i686-unknown-linux-gnu, ubuntu-latest, stable, sudo apt update && sudo apt install gcc-mul...	1m 6s
	18m 13s

Provide feedback