Update parquet requirement from 45.0.0 to 50.0.0 (huggingface#1592)

Updates the requirements on [parquet](https://github.com/apache/arrow-rs) to permit the latest version.
- [Changelog](https://github.com/apache/arrow-rs/blob/master/CHANGELOG-old.md)
- [Commits](apache/arrow-rs@45.0.0...45.0.0)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Cargo.toml

@@ -53,7 +53,7 @@ log = "0.4"
 memmap2 = { version = "0.9.3", features = ["stable_deref_trait"] }
 num_cpus = "1.15.0"
 num-traits = "0.2.15"
-parquet = { version = "45.0.0" }
+parquet = { version = "50.0.0" }
 rand = "0.8.5"
 rand_distr = "0.4.3"
 rayon = "1.7.0"