cargo: point `repository` metadata to clonable URLs #2053

Job	Run time
build (1.73.0, thumbv7em-none-eabi)	37s
cross (armv7-unknown-linux-gnueabihf, 1.73.0)	1m 39s
build (1.73.0, wasm32-unknown-unknown)	38s
build (stable, thumbv7em-none-eabi)	32s
cross (armv7-unknown-linux-gnueabihf, stable)	1m 28s
doc	57s
build (stable, wasm32-unknown-unknown)	30s
cross (aarch64-unknown-linux-gnu, 1.73.0)	1m 33s
test (i686-unknown-linux-gnu, 1.73.0, sudo apt update && sudo apt install gcc-multilib)	2m 1s
cross (aarch64-unknown-linux-gnu, stable)	1m 22s
test (i686-unknown-linux-gnu, stable, sudo apt update && sudo apt install gcc-multilib)	1m 39s
cross (powerpc-unknown-linux-gnu, 1.73.0)	1m 31s
test (x86_64-unknown-linux-gnu, 1.73.0)	1m 33s
cross (powerpc-unknown-linux-gnu, stable)	1m 18s
test (x86_64-unknown-linux-gnu, stable)	1m 18s
	18m 36s

Provide feedback