Bump sha2 from 0.9.3 to 0.9.4

Bumps [sha2](https://github.com/RustCrypto/hashes) from 0.9.3 to 0.9.4.
- [Release notes](https://github.com/RustCrypto/hashes/releases)
- [Commits](https://github.com/RustCrypto/hashes/compare/sha2-v0.9.3...sha2-v0.9.4)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Cargo.lock

@@ -681,6 +681,12 @@ version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a2df960f5d869b2dd8532793fde43eb5427cceb126c929747a26823ab0eeb536"
 
+[[package]]
+name = "cpufeatures"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5cd5a7748210e7ec1a9696610b1015e6e31fbf58f77a160801f124bd1c36592a"
+
 [[package]]
 name = "cpuid-bool"
 version = "0.1.2"
@@ -2419,13 +2425,13 @@ checksum = "2579985fda508104f7587689507983eadd6a6e84dd35d6d115361f530916fa0d"
 
 [[package]]
 name = "sha2"
-version = "0.9.3"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa827a14b29ab7f44778d14a88d3cb76e949c45083f7dbfa507d0cb699dc12de"
+checksum = "d8f6b75b17576b792bef0db1bcc4b8b8bcdf9506744cf34b974195487af6cff2"
 dependencies = [
  "block-buffer",
  "cfg-if 1.0.0",
- "cpuid-bool",
+ "cpufeatures",
  "digest",
  "opaque-debug",
 ]