[master] Update dependencies from dotnet/arcade dotnet/aspnetcore-tooling (#19878)

* Update dependencies from https://github.com/dotnet/arcade build 20200312.3

- Microsoft.DotNet.Arcade.Sdk - 5.0.0-beta.20162.3
- Microsoft.DotNet.GenAPI - 5.0.0-beta.20162.3
- Microsoft.DotNet.Helix.Sdk - 5.0.0-beta.20162.3

* Update dependencies from https://github.com/dotnet/aspnetcore-tooling

 build 20200316.1

- Microsoft.AspNetCore.Mvc.Razor.Extensions - 5.0.0-preview.3.20166.1
- Microsoft.AspNetCore.Razor.Language - 5.0.0-preview.3.20166.1
- Microsoft.CodeAnalysis.Razor - 5.0.0-preview.3.20166.1
- Microsoft.NET.Sdk.Razor - 5.0.0-preview.3.20166.1

Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>