[master] Update dependencies from dotnet/arcade

[dotnet-maestro]

This pull request updates the following dependencies

From https://github.com/dotnet/arcade

• Build: 20191227.1
• Date Produced: 12/27/2019 3:35 PM
• Commit: d2d025c1de37b1258f147851cb3e7373ad5ff09d
• Branch: refs/heads/master
• Updates:
  • Microsoft.DotNet.Arcade.Sdk -> 5.0.0-beta.19627.1

[dotnet-maestro]

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