[air](deps): Bump onnx from 1.15.0 to 1.20.1 in /python/requirements/ml

[dependabot]

Bumps onnx from 1.15.0 to 1.20.1.

Release notes

Sourced from onnx's releases.

v1.20.1

[!NOTE] This patch release includes important bug fixes to ONNX build.

What's Changed

• Export functions (onnx/onnx#7505)
• Revert ONNX CMake changes (onnx/onnx#7515)
• Export functions used in PyTorch (onnx/onnx#7524)
• Export protobuf symbols (onnx/onnx#7525)

Commits

• Bump version to 1.20.1rc1 by @​justinchuby in onnx/onnx#7561
• Cherry pick into 1.20.1 by @​cyyever @​justinchuby in onnx/onnx#7560
• Remove rc for 1.20.1 release by @​titaiwangms in onnx/onnx#7567

Full Changelog: onnx/onnx@v1.20.0...v1.20.1

v1.20.0

ONNX v1.20.0 is now available with exciting new features! We would like to thank everyone who contributed to this release! Please visit onnx.ai to learn more about ONNX and associated projects.

Updated Op list:

Cast, CastLike, Constant, ConstantOfShape, DequantizeLinear, Flatten, Identity, If, Loop, Pad, QuantizeLinear, Reshape, Scan, Shape, Size, Squeeze, Transpose, Unsqueeze

Key Updates:

• Support for Python 3.14 via Python's stable ABI. (#7276)
• Opset 25
• 2-bit dtype support (#7446)
• A new "node determinism" attribute in operator schemas (#7176)

Breaking Changes and Deprecations

• Update manylinux_2014 -> manylinux_2_28 (#7151)
• Update attention gqa to use repeat interleave within repeat kv (#7274)
• Update required Python version to 3.10 and related fixes (#7220)
• Remove Python 3.9 wheel build (#7217)
• Remove deprecated methods (#7214)

Spec and Operator

• Add 2 bit support to onnx (#7446)
• Remove enforcement to node determinism attribute (#7473)
• Fix handling of empty inputs for the Softmax operator (#7206)
• Fix OneHotEncoder segfault due to missing input shape validation (#7302)
• Fix Attention backend test: correct dimension of Range input (#7300)
• Fix Range input rank in Attention op function definition (#7240)

... (truncated)

Commits

• d3f6b79 Remove rc for 1.20.1 release (#7567)
• dc98b39 Cherry pick into 1.20.1 (#7560)
• 9830133 Bump version to 1.20.1rc1 (#7561)
• bca0315 Remove rc in rel-1.20.0 for official release (#7504)
• c305dc3 [1.20] Cherry pick removing node determinism (#7474)
• 3ba7a60 [1.20] Bump to rc2 (#7476)
• d8d3b07 [cherry-pick] Add 2 bit support to onnx (#7446) (#7468)
• 8a5f42f Revert opset 25 version bump (#7441) (#7444)
• 80d745f Add rc to version number (#7438)
• 4ba8081 Bump versions for 1.20.0 (#7436)
• Additional commits viewable in compare view

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[dependabot]

Superseded by #4063.