Bump thiserror from 1.0.67 to 1.0.68 (#278)

Bumps [thiserror](https://github.com/dtolnay/thiserror) from 1.0.67 to 1.0.68.
- [Release notes](https://github.com/dtolnay/thiserror/releases)
- [Commits](dtolnay/thiserror@1.0.67...1.0.68)

---
updated-dependencies:
- dependency-name: thiserror
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

bluez-async/Cargo.toml

@@ -22,7 +22,7 @@ itertools = "0.13.0"
 log = "0.4.22"
 serde = { version = "1.0.214", features = ["derive"] }
 serde-xml-rs = "0.6.0"
-thiserror = "1.0.67"
+thiserror = "1.0.68"
 tokio = { version = "1.38.1", features = ["rt"] }
 uuid = "1.11.0"