build(deps): update rand requirement from 0.8 to 0.9

Updates the requirements on [rand](https://github.com/rust-random/rand) to permit the latest version.
- [Release notes](https://github.com/rust-random/rand/releases)
- [Changelog](https://github.com/rust-random/rand/blob/master/CHANGELOG.md)
- [Commits](rust-random/rand@0.8.0...0.9.0)

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

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

fuzz/Cargo.toml

@@ -12,7 +12,7 @@ cargo-fuzz = true
 arbitrary = { version = "1", features = ["derive"] }
 bytes = "1"
 compact_str = { path = "../compact_str", features = ["bytes", "smallvec"] }
-rand = { version = "0.8", features = ["small_rng"] }
+rand = { version = "0.9", features = ["small_rng"] }
 rand_distr = "0.4"
 
 # Fuzz with both AFL++ and libFuzzer