chore(deps): bump rand in the cargo group across 1 directory

Bumps the cargo group with 1 update in the / directory: [rand](https://github.com/rust-random/rand).


Updates `rand` from 0.8.5 to 0.9.2
- [Release notes](https://github.com/rust-random/rand/releases)
- [Changelog](https://github.com/rust-random/rand/blob/master/CHANGELOG.md)
- [Commits](rust-random/rand@0.8.5...rand_core-0.9.2)

---
updated-dependencies:
- dependency-name: rand
  dependency-version: 0.9.2
  dependency-type: direct:production
  dependency-group: cargo
...

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

Author: dependabot[bot]

Cargo.lock

@@ -28,7 +28,7 @@ csv = "1.3"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 # Random number generation for splits
-rand = "0.8"
+rand = "0.9"
 rand_chacha = "0.3"
 # File walking
 walkdir = "2.5"