Bump sha2 from 0.9.9 to 0.10.6 in /rust (#134)

Bumps [sha2](https://github.com/RustCrypto/hashes) from 0.9.9 to 0.10.6.
- [Release notes](https://github.com/RustCrypto/hashes/releases)
- [Commits](RustCrypto/hashes@sha2-v0.9.9...sha2-v0.10.6)

---
updated-dependencies:
- dependency-name: sha2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

rust/Cargo.toml

@@ -19,7 +19,7 @@ crate-type = ["cdylib", "rlib"]
 cryptoxide = "0.4.2"
 cbor_event = "2.1.3"
 ed25519-bip32 = "0.4.1"
-sha2 = "^0.9"
+sha2 = "^0.10"
 digest = "^0.9"
 bech32 = "0.7.2"
 hex = "0.4.0"