Hello,
I have problems to build the repository by build.cmd.
I have many nuget related errors ("This package is signed but not by a trusted signer") like:

D:\Code\DotNet\wpf\wpf\src\Microsoft.DotNet.Wpf\tests\UnitTests\System.Xaml.Tests\System.Xaml.Tests.csproj : error NU3034: Package 'coverlet.collector 6.0.0' from source 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-public/nuget/v3/index.json': This package is signed but not by a trusted signer. [D:\Code\DotNet\wpf\wpf\Microsoft.Dotnet.Wpf.sln]
D:\Code\DotNet\wpf\wpf\src\Microsoft.DotNet.Wpf\src\System.Xaml\System.Xaml.csproj : error NU3034: Package 'Microsoft.CodeAnalysis.NetAnalyzers 8.0.0' from source 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-public/nuget/v3/index.json': This package is signed but not by a trusted signer. [D:\Code\DotNet\wpf\wpf\Microsoft.Dotnet.Wpf.sln]

How can I make the url 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-public/nuget/v3/index.json' as trusted nuget source?
I have tried many ways to allow untrusted sources or add the url to trusted source but nothing worked.

Thank you,
Karel