⬆️ Update ndarray requirement from 0.15 to 0.16

Updates the requirements on [ndarray](https://github.com/rust-ndarray/ndarray) to permit the latest version.
- [Release notes](https://github.com/rust-ndarray/ndarray/releases)
- [Changelog](https://github.com/rust-ndarray/ndarray/blob/master/RELEASES.md)
- [Commits](rust-ndarray/ndarray@ndarray-rand-0.15.0...0.16.1)

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

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

rust/ltp/Cargo.toml

@@ -68,5 +68,5 @@ serialization = ["serde", "serde_json", "apache-avro"]
 [dev-dependencies]
 clap = { version = "4", features = ["derive"] }
 
-ndarray = "0.15"
+ndarray = "0.16"
 ndarray-npy = { version = "0.8", features = ["npz"] }