coremltools>=5.2 for CoreML export (#8725)

requirements.txt

@@ -23,7 +23,7 @@ pandas>=1.1.4
 seaborn>=0.11.0
 
 # Export --------------------------------------
-# coremltools>=4.1  # CoreML export
+# coremltools>=5.2  # CoreML export
 # onnx>=1.9.0  # ONNX export
 # onnx-simplifier>=0.4.1  # ONNX simplifier
 # nvidia-pyindex  # TensorRT export