chore(deps): update rstest requirement from 0.18 to 0.19

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@v0.18.0...v0.19.0)

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

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

Cargo.toml

@@ -41,7 +41,7 @@ csv = "1.2"
 env_logger = "0.11"
 insta = { version = "1", features = ["yaml"] }
 pretty_assertions = "1.3"
-rstest = "0.18"
+rstest = "0.19"
 test-log = "0.2"
 
 [[bench]]