Update thiserror requirement from 1.0.2 to 2.0.6

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@1.0.2...2.0.6)

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

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

Cargo.toml

@@ -18,7 +18,7 @@ bitflags = "2"
 com = { version = "0.6", features = ["production"] }
 # libloading 0.8 switches from `winapi` to `windows-sys`; permit either
 libloading = ">=0.7,<0.9"
-thiserror = "1.0.2"
+thiserror = "2.0.6"
 widestring = "1"
 
 [target.'cfg(windows)'.dependencies]