Update arrow2 requirement from 0.15 to 0.16

Updates the requirements on [arrow2](https://github.com/jorgecarleitao/arrow2) to permit the latest version.
- [Release notes](https://github.com/jorgecarleitao/arrow2/releases)
- [Changelog](https://github.com/jorgecarleitao/arrow2/blob/main/CHANGELOG.md)
- [Commits](jorgecarleitao/arrow2@v0.15.0...v0.16.0)

---
updated-dependencies:
- dependency-name: arrow2
  dependency-type: direct:production
...

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

Cargo.toml

@@ -33,7 +33,7 @@ semver = "1.0"
 [dev-dependencies]
 tempfile = "3.3"
 # Only used in the example
-arrow2 = "0.15"
+arrow2 = "0.16"
 
 [workspace]
 members = ["gdal-sys"]