Update statrs requirement from 0.17.1 to 0.18.0

Updates the requirements on [statrs](https://github.com/statrs-dev/statrs) to permit the latest version.
- [Release notes](https://github.com/statrs-dev/statrs/releases)
- [Changelog](https://github.com/statrs-dev/statrs/blob/master/CHANGELOG.md)
- [Commits](statrs-dev/statrs@v0.17.1...v0.18.0)

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

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

Cargo.toml

@@ -16,4 +16,4 @@ anyhow = "1.0.68"
 hashbrown = "0.15.0"
 ndarray = { version = "0.16.1", features = ["rayon"] }
 ndarray-rand = "0.15.0"
-statrs = "0.17.1"
+statrs = "0.18.0"