Update rsa requirement from 0.8.2 to 0.9.6 in /az-cvm-vtpm (#44)

Updates the requirements on [rsa](https://github.com/RustCrypto/RSA) to permit the latest version.
- [Changelog](https://github.com/RustCrypto/RSA/blob/master/CHANGELOG.md)
- [Commits](RustCrypto/RSA@v0.8.2...v0.9.6)

---
updated-dependencies:
- dependency-name: rsa
  dependency-type: direct:production
...

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

az-cvm-vtpm/Cargo.toml

@@ -23,7 +23,7 @@ bincode.workspace = true
 jsonwebkey = { version = "0.3.5", features = ["pkcs-convert"] }
 memoffset = "0.9.0"
 openssl = { workspace = true, optional = true }
-rsa = { version = "0.8.2", features = ["pkcs5", "sha2"] }
+rsa = { version = "0.9.6", features = ["pkcs5", "sha2"] }
 serde.workspace = true
 serde_json.workspace = true
 serde-big-array = "0.5.1"