Update arrow-schema requirement from 55.1.0 to 56.2.0

Updates the requirements on [arrow-schema](https://github.com/apache/arrow-rs) to permit the latest version.
- [Release notes](https://github.com/apache/arrow-rs/releases)
- [Changelog](https://github.com/apache/arrow-rs/blob/main/CHANGELOG.md)
- [Commits](apache/arrow-rs@55.1.0...56.2.0)

---
updated-dependencies:
- dependency-name: arrow-schema
  dependency-version: 56.2.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

crates/fluss/Cargo.toml

@@ -24,7 +24,7 @@ build = "src/build.rs"
 
 [dependencies]
 arrow = { workspace = true }
-arrow-schema = "55.1.0"
+arrow-schema = "56.2.0"
 byteorder = "1.5"
 futures = "0.3"
 clap = { workspace = true }