[onnx] update to v1.20.1

[Copilot]

📝 Pull Request

🔄 Port Update

• Port Name: onnx
• New Version: 1.20.1
• Upstream Release or Tag: https://github.com/onnx/onnx/releases/tag/v1.20.1

📋 Port Update Checklist

• Port installs successfully with overlay(vcpkg install --overlay-ports)
• No unexpected files in port directory(e.g. patch files that are not used in portfile.cmake)
• Port follows formatting(vcpkg format-manifest --all)
• Version baseline has been updated

For Reviewers🔎, check the followings.

• Update Port Guide
• Update Version Baseline
• Review Checklist

Changes Made

• Updated version in vcpkg.json
• Updated REF in portfile.cmake (uses v${VERSION} pattern)
• Updated SHA512 hash in portfile.cmake
• Updated/removed patches: Removed fix-pr-7390.patch (upstreamed), updated fix-cmakelists.patch line numbers (668→534)
• Merged with main branch to incorporate latest repository changes

Patch changes:

• fix-pr-7390.patch: Deleted. Upstream v1.20.0+ includes the fix (removal of explicit keyword from OpSchemaRegisterOnce constructor).
• fix-cmakelists.patch: Updated from line 668 to line 534 to match CMakeLists.txt structure. Patch ensures .proto and .proto3 files are installed.

New SHA512: 4bbc4c09e4bb3eb6049d653ce49200564e8c5dcf1154a30f894f24e15f1986d1f2fe2f4ca32fe383c559e2a0b20681f33d649376bf63e4345df6972a2c78eac8

Validation

• vcpkg install --overlay-ports=ports onnx succeeds
• Regression tested in the other ports that use changed port

List the tested triplets:

• x64-linux

Build time: ~3.2 minutes
Artifacts: libonnx.a, libonnx_proto.a, CMake configs, headers, proto files

Original prompt

/update-port https://github.com/onnx/onnx/releases/tag/v1.20.0

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[luncliff]

Further consideration

• Integration with ONNX==1.20.1 microsoft/onnxruntime#26579
• https://github.com/onnx/optimizer/releases

[luncliff]

@copilot We will use more later version of the onnx project.

1. merge with the main branch to follow up other files's changes
2. Use https://github.com/onnx/onnx/releases/tag/v1.20.1 to update the port

[Copilot]

@copilot We will use more later version of the onnx project.

1. merge with the main branch to follow up other files's changes
   ...

Completed both tasks:

1. ✅ Merged with main branch (bc59ca7)
2. ✅ Updated port to v1.20.1 (d160507)

Installation tested successfully in 3.2 minutes.