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]>

Cargo.toml

@@ -41,7 +41,7 @@ env_logger = "0.11"
 hickory-proto = "0.24"
 log = "0.4"
 moka = { version = "0.12", features = ["future"] }
-rand = "0.8"
+rand = "0.9"
 tokio = { version = "1", features = ["rt-multi-thread"] }
 
 [[example]]