Update thiserror requirement from 1.0.65 to 2.0.0

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@1.0.65...2.0.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Cargo.toml

@@ -28,7 +28,7 @@ p384 = { version = "0.13.0", features = ["ecdsa", "std", "pkcs8", "pem"] }
 rand = "0.8.5"
 serde = { version = "1.0.213", features = ["derive"] }
 serde_json = "1.0.132"
-thiserror = "1.0.65"
+thiserror = "2.0.0"
 zeroize = "1.8.1"
 
 [target.'cfg(not(any(target_arch = "wasm32", target_arch = "wasm64")))'.dependencies]