Update thiserror requirement from 1.0.61 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@1.0.61...2.0.3)

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

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

Cargo.toml

@@ -31,7 +31,7 @@ geodesy_rs = { package = "geodesy", git = "https://github.com/Rennzie/geodesy.gi
 # code size when deploying.
 console_error_panic_hook = { version = "0.1.7", optional = true }
 js-sys = "0.3.69"
-thiserror = "1.0.61"
+thiserror = "2.0.3"
 console_log = { version = "1.0.0", features = ["color"], optional = true }
 log = "0.4.21"
 float_eq = "1.0.1"