Bump onnx from 1.14.1 to 1.17.0 in /src/model_converters/mxnet2onnx

Bumps [onnx](https://github.com/onnx/onnx) from 1.14.1 to 1.17.0.
- [Release notes](https://github.com/onnx/onnx/releases)
- [Changelog](https://github.com/onnx/onnx/blob/main/docs/Changelog-ml.md)
- [Commits](onnx/onnx@v1.14.1...v1.17.0)

---
updated-dependencies:
- dependency-name: onnx
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

src/model_converters/mxnet2onnx/requirements.txt

@@ -5,7 +5,7 @@ graphviz==0.8.4
 idna==3.6
 mxnet==1.9.1
 numpy==1.23.5
-onnx==1.14.1
+onnx==1.17.0
 protobuf==4.25.3
 requests==2.31.0
 typing_extensions==4.10.0