chore: remove git dependencies on pkcs1/pkcs8 #830

Job	Run time
minimal-versions	59s
test (1.83.0)	6m 52s
nightly	47s
build (1.83.0, thumbv7em-none-eabi)	31s
test (stable)	6m 56s
build (1.83.0, wasm32-unknown-unknown)	30s
build (stable, thumbv7em-none-eabi)	25s
build (stable, wasm32-unknown-unknown)	23s
	17m 23s

Provide feedback