Update datafusion requirement in the datafusion-dependencies group

Updates the requirements on [datafusion](https://github.com/apache/datafusion) to permit the latest version.

Updates `datafusion` to 47.0.0
- [Changelog](https://github.com/apache/datafusion/blob/main/CHANGELOG.md)
- [Commits](apache/datafusion@46.0.0...47.0.0)

---
updated-dependencies:
- dependency-name: datafusion
  dependency-version: 47.0.0
  dependency-type: direct:production
  dependency-group: datafusion-dependencies
...

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

Author: dependabot[bot]

Cargo.toml

@@ -14,7 +14,7 @@ random-string = "1.0"
 once_cell = "1.20"
 
 tokio = { version = "1.41", features = ["rt-multi-thread"] }
-datafusion = { version = "46.0", features = ["pyarrow"] }
+datafusion = { version = "50.1", features = ["pyarrow"] }
 async-trait = { version = "0.1" }
 
 [dev-dependencies]