Update thiserror requirement from 1.0.58 to 2.0.3 (#142)

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@1.0.58...2.0.3)

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

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

Author: dependabot[bot]

libazureinit/Cargo.toml

@@ -11,7 +11,7 @@ description = "A common library for provisioning Linux VMs on Azure."
 [dependencies]
 reqwest = { version = "0.12.0", default-features = false, features = ["blocking", "json"] }
 serde = {version = "1.0.163", features = ["derive"]}
-thiserror = "1.0.58"
+thiserror = "2.0.3"
 tokio = { version = "1", features = ["full"] }
 serde-xml-rs = "0.6.0"
 serde_json = "1.0.96"