Update `onnx>=1.12.0` (#10526)

export.py

@@ -132,7 +132,7 @@ def export_torchscript(model, im, file, optimize, prefix=colorstr('TorchScript:'
 @try_export
 def export_onnx(model, im, file, opset, dynamic, simplify, prefix=colorstr('ONNX:')):
     # YOLOv5 ONNX export
-    check_requirements('onnx')
+    check_requirements('onnx>=1.12.0')
     import onnx
 
     LOGGER.info(f'\n{prefix} starting export with onnx {onnx.__version__}...')

requirements.txt

@@ -29,7 +29,7 @@ seaborn>=0.11.0
 
 # Export ----------------------------------------------------------------------
 # coremltools>=6.0  # CoreML export
-# onnx>=1.9.0  # ONNX export
+# onnx>=1.12.0  # ONNX export
 # onnx-simplifier>=0.4.1  # ONNX simplifier
 # nvidia-pyindex  # TensorRT export
 # nvidia-tensorrt  # TensorRT export