Update sha2 requirement from 0.8 to 0.9

Updates the requirements on [sha2](https://github.com/RustCrypto/hashes) to permit the latest version.
- [Release notes](https://github.com/RustCrypto/hashes/releases)
- [Commits](https://github.com/RustCrypto/hashes/compare/groestl-v0.8.0...sha2-v0.9.0)

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

lib/Cargo.toml

@@ -19,7 +19,7 @@ quick-xml = "0.18"
 rand = "0.7"
 md-5 = "0.8"
 sha-1 = "0.8"
-sha2 = "0.8"
+sha2 = "0.9"
 digest = "0.8"
 regex = "1"
 oxilangtag = "0.1"