Update CoreML exports to support newer *.mlpackage outputs (#13222)

* Implement and default mlpackage generation for CoreML model exports

Signed-off-by: Ryan Hirasaki <ryanhirasaki@gmail.com>

* Provide command line argument to export as *.mlmodel instead of *.mlpackage for CoreML

Signed-off-by: Ryan Hirasaki <ryanhirasaki@gmail.com>

* Remove macOS check for CoreML quantization

Requirements for macOS during quantization was removed from coremltools 6.0

Signed-off-by: Ryan Hirasaki <ryanhirasaki@gmail.com>

* Undo removal of warning catching

Signed-off-by: Ryan Hirasaki <ryanhirasaki@gmail.com>

* Change file extension references from mlmodel to mlpackage

Signed-off-by: Ryan Hirasaki <ryanhirasaki@gmail.com>

* Auto-format by https://ultralytics.com/actions

---------

Signed-off-by: Ryan Hirasaki <ryanhirasaki@gmail.com>
Co-authored-by: UltralyticsAssistant <web@ultralytics.com>
Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>
Co-authored-by: Ultralytics Assistant <135830346+UltralyticsAssistant@users.noreply.github.com>

benchmarks.py

@@ -9,7 +9,7 @@ TorchScript                 | `torchscript`                 | yolov5s.torchscrip
 ONNX                        | `onnx`                        | yolov5s.onnx
 OpenVINO                    | `openvino`                    | yolov5s_openvino_model/
 TensorRT                    | `engine`                      | yolov5s.engine
-CoreML                      | `coreml`                      | yolov5s.mlmodel
+CoreML                      | `coreml`                      | yolov5s.mlpackage
 TensorFlow SavedModel       | `saved_model`                 | yolov5s_saved_model/
 TensorFlow GraphDef         | `pb`                          | yolov5s.pb
 TensorFlow Lite             | `tflite`                      | yolov5s.tflite