Update rand requirement from 0.8.4 to 0.9.0

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@0.8.4...0.9.0)

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

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

Author: dependabot[bot]

Cargo.toml

@@ -159,7 +159,7 @@ num-integer = "0.1.44"
 [dev-dependencies]
 serde_json = "1"
 criterion = "0.5"
-rand = "0.8.4"
+rand = "0.9.0"
 flate2 = "1"
 
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