added dependencies

ultralytics/engine/exporter.py

@@ -1041,7 +1041,7 @@ class Exporter:
 
     @try_export
     def export_mct(self, prefix=colorstr("Sony MCT:")):
-        check_requirements("mct-nightly")
+        check_requirements(["mct-nightly","sony-custom-layers[torch]"])
         import model_compression_toolkit as mct
         import onnx
         from model_compression_toolkit.core import BitWidthConfig

ultralytics/nn/autobackend.py

@@ -178,6 +178,7 @@ class AutoBackend(nn.Module):
 
             providers = ["CUDAExecutionProvider", "CPUExecutionProvider"] if cuda else ["CPUExecutionProvider"]
             if mct:
+                check_requirements(["mct-nightly","sony-custom-layers[torch]"])
                 LOGGER.info(f"Loading {w} for ONNX MCT quantization inference...")
                 import mct_quantizers as mctq
                 from sony_custom_layers.pytorch.object_detection import nms_ort  # noqa