chore(deps): update rand_chacha requirement from 0.3 to 0.9

Updates the requirements on [rand_chacha](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@rand_chacha-0.3.0...0.9.0)

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

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

Author: dependabot[bot]

Cargo.toml

@@ -8,7 +8,7 @@ authors = ["Anshul Malik <[email protected]>"]
 num-bigint = { version = "0.4", optional = true }
 num-traits = { version = "0.2", optional = true }
 rand = "0.8"
-rand_chacha = "0.3"
+rand_chacha = "0.9"
 nalgebra = "0.33.0"
 
 [dev-dependencies]