[Build] Fix nuget pipelines to pass IsReleaseBuild to validate-package

[tianleiwu]

Summary

This PR fixes an issue where the is_release_build parameter was not being correctly passed to the validate_package.py script across various Azure Pipelines.

Changes

• Updated the combined CUDA packaging stage and its sub-stages to pass the IsReleaseBuild parameter through the template chain.
• Added missing IsReleaseBuild parameter definitions to following templates:
  tools/ci_build/github/azure-pipelines/stages/nuget-linux-cuda-packaging-stage.yml
  tools/ci_build/github/azure-pipelines/stages/nuget-win-cuda-packaging-stage.yml
• Ensured all calls to validate-package.yml (including the main CUDA NuGet stage) now explicitly pass the IsReleaseBuild flag.

Context

It is based on #27382.

[Copilot]

Pull request overview

This PR fixes an issue where the IsReleaseBuild parameter was not being correctly passed to the validate_package.py script in various Azure Pipeline stages for CUDA NuGet packaging. The parameter is required by the validation script to properly verify packages based on whether they are release builds or not.

Changes:

• Added IsReleaseBuild parameter definitions to nuget-win-cuda-packaging-stage.yml and nuget-linux-cuda-packaging-stage.yml templates with default value of false
• Updated nuget-combine-cuda-stage.yml to pass the IsReleaseBuild parameter to Linux and Windows CUDA packaging sub-stages
• Added IsReleaseBuild parameter to all three validate-package.yml template calls in nuget-cuda-packaging-stage.yml for validating the combined Gpu, Gpu.Windows, and Gpu.Linux packages

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
tools/ci_build/github/azure-pipelines/stages/nuget-win-cuda-packaging-stage.yml	Added IsReleaseBuild parameter definition (lines 58-60) and passed it to validate-package.yml call for Windows GPU package validation (line 185)
tools/ci_build/github/azure-pipelines/stages/nuget-linux-cuda-packaging-stage.yml	Added IsReleaseBuild parameter definition (lines 9-11) and passed it to validate-package.yml call for Linux GPU package validation (line 208)
tools/ci_build/github/azure-pipelines/stages/nuget-cuda-packaging-stage.yml	Passed IsReleaseBuild to three validate-package.yml calls for combined Gpu package, Windows-specific package, and Linux-specific package (lines 189, 198, 207)
tools/ci_build/github/azure-pipelines/stages/nuget-combine-cuda-stage.yml	Passed IsReleaseBuild parameter through to both Linux and Windows CUDA packaging stages (lines 60, 75)

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