Update polars requirement from 0.46.0 to 0.48.0

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-0.46.0...rs-0.48.0)

---
updated-dependencies:
- dependency-name: polars
  dependency-version: 0.48.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

Cargo.toml

@@ -69,7 +69,7 @@ statrs = "0.18.0"
 
 
 [dev-dependencies]
-polars = { version = "0.46.0", features = ["parquet"] }
+polars = { version = "0.48.0", features = ["parquet"] }
 rstest = "0.25.0"
 pretty_env_logger = "0.5"
 toml = "0.8.14"