Update rstest requirement from 0.17.0 to 0.18.1

Updates the requirements on [rstest](https://github.com/la10736/rstest) to permit the latest version.
- [Release notes](https://github.com/la10736/rstest/releases)
- [Changelog](https://github.com/la10736/rstest/blob/master/CHANGELOG.md)
- [Commits](la10736/rstest@0.17.0...0.17.0)

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

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

Cargo.toml

@@ -75,7 +75,7 @@ abstract-ica = { version = "0.16.1", path = "packages/abstract-ica" }
 
 ## Testing
 cw-multi-test = { version = "0.16.2" }
-rstest = "0.17.0"
+rstest = "0.18.1"
 speculoos = "0.11.0"
 anyhow = "1"