chore(deps): update datafusion requirement from 28 to 30

Updates the requirements on [datafusion](https://github.com/apache/arrow-datafusion) to permit the latest version.
- [Changelog](https://github.com/apache/arrow-datafusion/blob/main/.github_changelog_generator)
- [Commits](apache/datafusion@28.0.0...30.0.0)

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

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

Cargo.toml

@@ -47,7 +47,7 @@ rustls-pemfile = { version = "1.0" }
 ## rustls-native-certs loads roots from current system
 gluesql = "0.13"
 ## for datafusion example
-datafusion = "28"
+datafusion = "30"
 sqlparser = "0.37"
 
 [features]