Update thiserror requirement from 1.0.23 to 2.0.3

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@1.0.23...2.0.3)

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

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

Cargo.toml

@@ -36,7 +36,7 @@ httparse = { version = "1.3.4", optional = true }
 log = "0.4.8"
 rand = "0.8.0"
 sha1 = { version = "0.10", optional = true }
-thiserror = "1.0.23"
+thiserror = "2.0.3"
 url = { version = "2.1.0", optional = true }
 utf-8 = "0.7.5"