build(deps): bump openmls_rust_crypto from 0.4.4 to 0.5.1

Bumps [openmls_rust_crypto](https://github.com/openmls/openmls) from 0.4.4 to 0.5.1.
- [Release notes](https://github.com/openmls/openmls/releases)
- [Changelog](https://github.com/openmls/openmls/blob/main/CHANGELOG.md)
- [Commits](https://github.com/openmls/openmls/commits)

---
updated-dependencies:
- dependency-name: openmls_rust_crypto
  dependency-version: 0.5.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Cargo.lock

@@ -56,7 +56,7 @@ criterion = "0.8"
 
 # MLS (Message Layer Security)
 openmls = "0.7"
-openmls_rust_crypto = "0.4"
+openmls_rust_crypto = "0.5"
 openmls_basic_credential = "0.4"
 openmls_traits = "0.4"