Update rand requirement from 0.8 to 0.9 in the dependencies group

Updates the requirements on [rand](https://github.com/rust-random/rand) to permit the latest version.

Updates `rand` to 0.9.0
- [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
  dependency-group: dependencies
...

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

Author: dependabot[bot]

Cargo.toml

@@ -20,7 +20,7 @@ tracing = "0.1.37"
 criterion = "0.5"
 futures = "0.3"
 proptest = "1"
-rand = "0.8"
+rand = "0.9"
 tempfile = "3"
 
 [[bench]]