deps: update rand_pcg requirement from 0.3.1 to 0.9.0

Updates the requirements on [rand_pcg](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_pcg-0.3.1...0.9.0)

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

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

sprs-rand/Cargo.toml

@@ -11,5 +11,5 @@ edition.workspace = true
 [dependencies]
 rand = "0.8.5"
 rand_distr = "0.4.3"
-rand_pcg = "0.3.1"
+rand_pcg = "0.9.0"
 sprs = { version = "0.11.0", path = "../sprs" }