Bump the dependabot group across 1 directory with 2 updates

Bumps the dependabot group with 2 updates in the /rust directory: [flatbuffers](https://github.com/google/flatbuffers) and [rand](https://github.com/rust-random/rand).


Updates `flatbuffers` from 24.12.23 to 25.1.24
- [Release notes](https://github.com/google/flatbuffers/releases)
- [Changelog](https://github.com/google/flatbuffers/blob/master/CHANGELOG.md)
- [Commits](google/flatbuffers@v24.12.23...v25.1.24)

Updates `rand` from 0.8.5 to 0.9.0
- [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...0.9.0)

---
updated-dependencies:
- dependency-name: flatbuffers
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: dependabot
- dependency-name: rand
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dependabot
...

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

rust/Cargo.toml

@@ -19,12 +19,12 @@ name = "sedpack_rs"
 crate-type = ["cdylib", "rlib"]
 
 [dependencies]
-flatbuffers = "24.12"
+flatbuffers = "25.1"
 flate2 = { version = "1.0.17" }
 lz4_flex = { version = "0.11.3", default-features = false , features = ["frame"] }
 numpy = "0.23"
 pyo3 = "0.23"
-rand = "0.8"
+rand = "0.9"
 strum = "0.26.3"
 strum_macros = "0.26.4"
 yoke = { version = "0.7", features = ["derive"] }