This PR introduces the following changes to the CI pipeline and version management:
Pipeline Enhancements:
1. Added a new script UpdateVersions.ps1 to automate the update of Microsoft.WindowsAppSDK versions across various project files.
2. Introduced a new pipeline configuration ci-using-the-latest-winappsdk.yml to build using the latest Microsoft.WindowsAppSDK.
3. Updated existing pipeline configurations to support the new useLatestWinAppSDK parameter.
Pipeline Configuration Updates:
1. Updated job-build-project.yml to handle the useLatestWinAppSDK parameter and adjust the RestoreAdditionalProjectSourcesArg accordingly.
2. Added a new template steps-update-winappsdk-and-restore-nuget.yml for updating and restoring NuGet packages with the latest Microsoft.WindowsAppSDK.
3. Added WinAPPSDK version selection, the pipeline can be manually triggered to use the specified version.
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Signed-off-by: Shawn Yuan <shuai.yuan.zju@gmail.com>
Co-authored-by: Clint Rutkas <clint@rutkas.com>