[Build] Fix DML Nuget Pipeline

[tianleiwu]

Fix DML NuGet Packaging Build Failure & Component Governance Warnings

I have addressed three distinct issues, incorporating feedback to improve robustness.

Changes

1. Fix arm64 Job Renaming

Replaced ren with PowerShell + error handling:

File: tools/ci_build/github/azure-pipelines/dml-nuget-packaging.yml

powershell -Command "Get-ChildItem Microsoft.ML.OnnxRuntime.DirectML.*.nupkg -ErrorAction Stop | Sort-Object -Property Name | Select-Object -First 1 | Rename-Item -NewName win-dml-arm64.zip"      

2. Fix Bundling Script (Multiple Matches)

The script was finding multiple packages (Release vs Dev, Main vs Symbols) and failing. I updated it to robustness selection logic:

1. Filter: Exclude *.symbols.nupkg.
2. Select Best: If multiple remain (e.g. 1.24.1.nupkg vs 1.24.1-dev...nupkg), select the one with the shortest filename, which prioritizes the canonical Release package.

File: tools/ci_build/github/windows/bundle_dml_package.ps1

# Before: Error if count != 1
- if ($nupkgFiles.Count -ne 1) { Write-Error ... }

# After: Warn and Select Best (Shortest Name)
+ if ($nupkgFiles.Count -gt 1) { Write-Warning "Found multiple packages. Selecting the one with the shortest filename." }
+ $nupkg = $nupkgFiles | Sort-Object {$_.Name.Length} | Select-Object -First 1

3. Fix Component Governance Warnings

Added setuptools installation for Python 3.12 compatibility.

[Copilot]

Pull request overview

This pull request fixes two issues in the DML NuGet packaging pipeline: (1) packaging build failures caused by multiple .nupkg files (main package and symbols package) when using the Windows ren command, and (2) Component Governance warnings due to Python 3.12's removal of the distutils module.

Changes:

• Added setuptools installation to resolve Python 3.12 distutils deprecation
• Replaced fragile batch ren command with explicit PowerShell logic to rename only the main .nupkg file (not symbols package)
• Fixed trailing whitespace

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