chore(deps): update datafusion requirement from 49.0.2 to 50.0.0 in /integrations/object_store (#6613)

chore(deps): update datafusion requirement in /integrations/object_store

Updates the requirements on [datafusion](https://github.com/apache/datafusion) to permit the latest version.
- [Changelog](https://github.com/apache/datafusion/blob/main/CHANGELOG.md)
- [Commits](apache/datafusion@49.0.2...50.0.0)

---
updated-dependencies:
- dependency-name: datafusion
  dependency-version: 50.0.0
  dependency-type: direct:production
...

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integrations/object_store/Cargo.toml

@@ -48,7 +48,7 @@ tokio = { version = "1", default-features = false }
 
 [dev-dependencies]
 anyhow = "1.0.86"
-datafusion = "49.0.2"
+datafusion = "50.0.0"
 libtest-mimic = "0.8.1"
 opendal = { version = "0.54.0", path = "../../core", features = [
   "services-memory",