chore(deps): bump the cargo group across 2 directories with 1 update (#13)

Bumps the cargo group with 1 update in the /ffi/rust directory: [rand](https://github.com/rust-random/rand).
Bumps the cargo group with 1 update in the /impl/rust-ffi directory: [rand](https://github.com/rust-random/rand).


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/0.9.3/CHANGELOG.md)
- [Commits](rust-random/rand@0.8.5...0.9.3)

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/0.9.3/CHANGELOG.md)
- [Commits](rust-random/rand@0.8.5...0.9.3)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

ffi/rust/Cargo.lock

@@ -39,7 +39,7 @@ libc = "0.2"
 zeroize = { version = "1.7", features = ["derive"] }
 
 # Random for secure overwrite patterns
-rand = "0.8"
+rand = "0.9"
 
 # SHA-256 for content verification
 sha2 = "0.10"

ffi/rust/Cargo.toml

@@ -39,7 +39,7 @@ libc = "0.2"
 zeroize = { version = "1.7", features = ["derive"] }
 
 # Random for secure overwrite patterns
-rand = "0.8"
+rand = "0.9"
 
 # SHA-256 for content verification
 sha2 = "0.10"