chore(deps): bump onnx-weekly from 1.21.0.dev20251215 to 1.21.0.dev20251229 in /requirements/ci#2751

dependabot[bot] wants to merge 2 commits intomainmicrosoft/onnxscript:mainfrom

dependabot/pip/requirements/ci/onnx-weekly-1.21.0.dev20251229microsoft/onnxscript:dependabot/pip/requirements/ci/onnx-weekly-1.21.0.dev20251229Copy head branch name to clipboard