feat: Update dependencies and implement face detection features

- Updated async-nats dependency to version 0.45.0 in both libertas_api and libertas_worker.
- Introduced AI-related structures and traits in libertas_core for face detection.
- Added AiConfig and FaceDetectorRuntime enums to support different face detection methods.
- Implemented TractFaceDetector and RemoteNatsFaceDetector in libertas_infra for local and remote face detection.
- Created FaceDetectionPlugin to integrate face detection into the media processing pipeline.
- Enhanced XMP writing functionality to include face region data.
- Updated PluginManager to initialize face detection plugins based on configuration.

libertas_worker/Cargo.toml

@@ -8,7 +8,7 @@ libertas_core = { path = "../libertas_core" }
 libertas_infra = { path = "../libertas_infra" }
 
 anyhow = "1.0.100"
-async-nats = "0.44.2"
+async-nats = "0.45.0"
 serde = { version = "1.0.228", features = ["derive"] }
 serde_json = "1.0.145"
 tokio = { version = "1.48.0", features = ["full"] }