Rust

Replace rust_secp256k1 with k256 #12358

Job	Run time
default-features-and-witty-integration-test	3m 39s
execution-wasmtime-test	1m 31s
remote-net-test	1m 8s
wasm-application-test	3m 21s
benchmark-test	3m 32s
check-outdated-cli-md	46s
ethereum-tests	1m 15s
lint-cargo-machete	40s
lint-unexpected-chain-load-operations	6s
lint-check-copyright-headers	15s
storage-service-tests	1m 19s
web	54s
lint-cargo-clippy	3m 33s
lint-cargo-doc	3m 25s
lint-cargo-fmt	40s
lint-cargo-sort	38s
lint-check-all-features	2m 11s
lint-check-for-outdated-readme	51s
lint-check-linera-service-graphql-schema	46s
lint-wasm-applications	3m 23s
	33m 53s

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