build(deps): update thiserror requirement in /az-cvm-vtpm (#63)

Updates the requirements on [thiserror](https://github.com/dtolnay/thiserror) to permit the latest version.
- [Release notes](https://github.com/dtolnay/thiserror/releases)
- [Commits](dtolnay/thiserror@1.0.38...1.0.69)

---
updated-dependencies:
- dependency-name: thiserror
  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

@@ -44,7 +44,7 @@ clap = { version = "4", features = ["derive"] }
 openssl = "0.10"
 serde = { version = "1.0.189", features = ["derive"] }
 serde_json = "1.0.107"
-thiserror = "1.0.38"
+thiserror = "2.0.3"
 sev = "4.0.0"
 ureq = { version = "2.6.2", default-features = false, features = ["json"] }
 zerocopy = { version = "0.7.26", features = ["derive"] }