chore(deps): bump the cargo group across 4 directories with 1 update

Bumps the cargo group with 1 update in the /a2ml/bindings/rust directory: [rand](https://github.com/rust-random/rand).
Bumps the cargo group with 1 update in the /k9-svc/bindings/rust directory: [rand](https://github.com/rust-random/rand).
Bumps the cargo group with 1 update in the /k9-svc/tools/src/k9-sign directory: [rand](https://github.com/rust-random/rand).
Bumps the cargo group with 1 update in the /rhodium-standard-repositories/satellites/rsr-certifier directory: [rand](https://github.com/rust-random/rand).


Updates `rand` from 0.9.2 to 0.9.4
- [Release notes](https://github.com/rust-random/rand/releases)
- [Changelog](https://github.com/rust-random/rand/blob/0.9.4/CHANGELOG.md)
- [Commits](rust-random/rand@rand_core-0.9.2...0.9.4)

Updates `rand` from 0.9.2 to 0.9.4
- [Release notes](https://github.com/rust-random/rand/releases)
- [Changelog](https://github.com/rust-random/rand/blob/0.9.4/CHANGELOG.md)
- [Commits](rust-random/rand@rand_core-0.9.2...0.9.4)

Updates `rand` from 0.8.5 to 0.9.3
- [Release notes](https://github.com/rust-random/rand/releases)
- [Changelog](https://github.com/rust-random/rand/blob/0.9.4/CHANGELOG.md)
- [Commits](rust-random/rand@rand_core-0.9.2...0.9.4)

Updates `rand` from 0.9.2 to 0.9.4
- [Release notes](https://github.com/rust-random/rand/releases)
- [Changelog](https://github.com/rust-random/rand/blob/0.9.4/CHANGELOG.md)
- [Commits](rust-random/rand@rand_core-0.9.2...0.9.4)

---
updated-dependencies:
- dependency-name: rand
  dependency-version: 0.9.4
  dependency-type: indirect
  dependency-group: cargo
- dependency-name: rand
  dependency-version: 0.9.4
  dependency-type: indirect
  dependency-group: cargo
- dependency-name: rand
  dependency-version: 0.9.3
  dependency-type: direct:production
  dependency-group: cargo
- dependency-name: rand
  dependency-version: 0.9.4
  dependency-type: indirect
  dependency-group: cargo
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

a2ml/bindings/rust/Cargo.lock

@@ -14,7 +14,7 @@ categories = ["command-line-utilities", "cryptography"]
 clap = { version = "4.5", features = ["derive"] }
 anyhow = "1.0"
 ed25519-dalek = "2.1"
-rand = "0.8"
+rand = "0.9"
 base64 = "0.22"
 chrono = "0.4"