[NeoML-Py] Bump onnx from 1.14.1 to 1.16.0 (#1075)

Bumps [onnx](https://github.com/onnx/onnx) from 1.14.1 to 1.16.0.
- [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...v1.16.0)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Kirill Golikov <kirill.golikov@abbyy.com>

NeoML/docs/en/Python/requirements.txt

@@ -16,4 +16,4 @@ numpy
 scipy
 pybind11-global
 jinja2
-onnx==1.14.1
+onnx==1.16.0