build(deps): bump onnx in the pip group across 1 directory

Bumps the pip group with 1 update in the / directory: [onnx](https://github.com/onnx/onnx).


Updates `onnx` from 1.15.0 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@v1.15.0...v1.16.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

requirements.txt

@@ -17,6 +17,6 @@ infernet_ml==0.1.0
 PyArweave @ git+https://github.com/ritual-net/pyarweave.git
 torch==2.2.1
 web3==6.15.0
-onnx==1.15.0
+onnx==1.16.0
 onnxruntime==1.17.1
 pre-commit==2.15.0