Deprecated dependency in tidy's deps.rs

[pierwill]

According to crates.io, cpuid-bool is deprecated. However, it is listed in the permitted dependencies:

rust/src/tools/tidy/src/deps.rs

Line 96 in 498eeb7

"cpuid-bool",

cpuid-bool is being pulled in by two hashing crates:

rust/Cargo.lock

Lines 4713 to 4737 in 4c55c83

	[[package]]
	name = "sha-1"
	version = "0.9.1"
	source = "registry+https://github.com/rust-lang/crates.io-index"
	checksum = "170a36ea86c864a3f16dd2687712dd6646f7019f301e57537c7f4dc9f5916770"
	dependencies = [
	"block-buffer 0.9.0",
	"cfg-if 0.1.10",
	"cpuid-bool",
	"digest 0.9.0",
	"opaque-debug 0.3.0",
	]
	[[package]]
	name = "sha2"
	version = "0.9.1"
	source = "registry+https://github.com/rust-lang/crates.io-index"
	checksum = "2933378ddfeda7ea26f48c555bdad8bb446bf8a3d17832dc83e380d444cfb8c1"
	dependencies = [
	"block-buffer 0.9.0",
	"cfg-if 0.1.10",
	"cpuid-bool",
	"digest 0.9.0",
	"opaque-debug 0.3.0",
	]

Both of these crates now use cpufeatures.

We should update sha2 and sha-1 to use the currently maintained crate.

[pierwill]

@rustbot claim