Bump fluent-langneg from 0.13.0 to 0.14.0

Bumps [fluent-langneg](https://github.com/projectfluent/fluent-langneg-rs) from 0.13.0 to 0.14.0.
- [Release notes](https://github.com/projectfluent/fluent-langneg-rs/releases)
- [Changelog](https://github.com/projectfluent/fluent-langneg-rs/blob/main/CHANGELOG.md)
- [Commits](https://github.com/projectfluent/fluent-langneg-rs/commits/fluent-langneg@0.14.0)

---
updated-dependencies:
- dependency-name: fluent-langneg
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Cargo.toml

@@ -19,7 +19,7 @@ base64 = { version = "0.21.7", default-features = false }
 bcrypt = "0.15.0"
 config = "0.14.0"
 env_logger = "0.11.1"
-fluent-langneg = { version = "0.13.0", default-features = false }
+fluent-langneg = { version = "0.14.0", default-features = false }
 fluent-templates = { version = "0.8.0", default-features = false }
 futures = { version = "0.3.30", default-features = false, features = [ "async-await" ] }
 futures-util = { version = "0.3.28", default-features = false }