feat: Use the git version of mnn-rs with a patch to local

src/facedet.rs

@@ -93,7 +93,7 @@ impl FaceDetection {
         model.set_session_mode(mnn::SessionMode::Release);
         let bc = mnn::BackendConfig::default().with_memory_mode(mnn::MemoryMode::High);
         let sc = mnn::ScheduleConfig::new()
-            .with_type(mnn::ForwardType::CPU)
+            .with_type(mnn::ForwardType::CoreML)
             .with_backend_config(bc);
         tracing::info!("Creating session handle for face detection model");
         let handle = mnn_sync::SessionHandle::new(model, sc)
@@ -103,6 +103,7 @@ impl FaceDetection {
     }
 
     pub fn detect_faces(&self, image: ndarray::Array3<u8>) -> Result<FaceDetectionModelOutput> {
+        #[rustfmt::skip]
         use ::tap::*;
         let output = self
             .handle