Update xshell requirement from 0.1 to 0.2

Updates the requirements on [xshell](https://github.com/matklad/xshell) to permit the latest version.
- [Release notes](https://github.com/matklad/xshell/releases)
- [Changelog](https://github.com/matklad/xshell/blob/master/CHANGELOG.md)
- [Commits](matklad/xshell@v0.1.0...v0.2.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

tools/ci/Cargo.toml

@@ -7,4 +7,4 @@ publish = false
 license = "MIT OR Apache-2.0"
 
 [dependencies]
-xshell = "0.1"
+xshell = "0.2"