Update thiserror requirement from 1.0.50 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@1.0.50...1.0.68)

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

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

Cargo.toml

@@ -49,7 +49,7 @@ async-trait = "0.1.74"
 parking_lot = { version = "0.12.1", features = ["serde"] }
 rmp-serde = { version = "1.1.2" }
 serde = "1.0.192"
-thiserror = "1.0.50"
+thiserror = "2.0.0"
 time = "0.3.30"
 tokio = { version = "1.32.0", default-features = false, features = ["sync"] }