cargo: point `repository` metadata to clonable URLs (#1079) #1659

Job	Run time
build (1.65.0, thumbv7em-none-eabi)	1m 10s
test (1.65.0)	1m 9s
build (1.65.0, wasm32-unknown-unknown)	1m 7s
test (stable)	10s
build (stable, thumbv7em-none-eabi)	38s
build (stable, wasm32-unknown-unknown)	14s
	4m 28s

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