Update polars requirement from 0.42.0 to 0.43.0

Updates the requirements on [polars](https://github.com/pola-rs/polars) to permit the latest version.
- [Release notes](https://github.com/pola-rs/polars/releases)
- [Commits](pola-rs/polars@rs-0.42.0...rs-0.43.0)

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

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

Cargo.toml

@@ -80,7 +80,7 @@ serde_dhall = "0.12"
 toml = "0.8.14"
 
 [dev-dependencies]
-polars = { version = "0.42.0", features = ["parquet"] }
+polars = { version = "0.43.0", features = ["parquet"] }
 rstest = "0.22.0"
 pretty_env_logger = "0.5"