Bump rand from 0.8.5 to 0.9.1

Bumps [rand](https://github.com/rust-random/rand) from 0.8.5 to 0.9.1.
- [Release notes](https://github.com/rust-random/rand/releases)
- [Changelog](https://github.com/rust-random/rand/blob/master/CHANGELOG.md)
- [Commits](rust-random/rand@0.8.5...rand_core-0.9.1)

---
updated-dependencies:
- dependency-name: rand
  dependency-version: 0.9.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Cargo.lock

@@ -47,7 +47,7 @@ octorust = "0.10.0"
 parse_link_header = "0.4.0"
 pretty_assertions = "1.4.1"
 qrcode = "0.14.1"
-rand = "0.8.5" # do-not-upgrade
+rand = "0.9.1" # do-not-upgrade
 regex = "1.12.2"
 reqwest = { version = "0.12.24", features = ["json",  "multipart", "native-tls-vendored"] }
 reqwest-middleware = "0.4.2"