Bump quick-xml from 0.41.0 to 0.42.0 in /agent

Bumps [quick-xml](https://github.com/tafia/quick-xml) from 0.41.0 to 0.42.0.
- [Release notes](https://github.com/tafia/quick-xml/releases)
- [Changelog](https://github.com/tafia/quick-xml/blob/master/Changelog.md)
- [Commits](https://github.com/tafia/quick-xml/compare/v0.41.0...v0.42.0)

---
updated-dependencies:
- dependency-name: quick-xml
  dependency-version: 0.42.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

agent/cairnobs-agent/Cargo.toml

@@ -47,7 +47,7 @@ windows = { version = "0.62", features = [
     "Win32_Security",
 ] }
 windows-service = "0.8"
-quick-xml = "0.41"
+quick-xml = "0.42"
 
 [build-dependencies]
 tonic-build = "0.12"