[master] Update dependencies from dotnet/arcade mono/linker Microsoft/vstest dotnet/runtime-assets dotnet/xharness (#40085)

* Update dependencies from https://github.com/dotnet/arcade build 20200724.1

Microsoft.DotNet.XUnitExtensions , Microsoft.DotNet.GenFacades , Microsoft.DotNet.Build.Tasks.Feed , Microsoft.DotNet.Build.Tasks.Packaging , Microsoft.DotNet.Build.Tasks.SharedFramework.Sdk , Microsoft.DotNet.Build.Tasks.TargetFramework.Sdk , Microsoft.DotNet.CodeAnalysis , Microsoft.DotNet.GenAPI , Microsoft.DotNet.XUnitConsoleRunner , Microsoft.DotNet.Helix.Sdk , Microsoft.DotNet.RemoteExecutor , Microsoft.DotNet.VersionTools.Tasks , Microsoft.DotNet.Arcade.Sdk , Microsoft.DotNet.ApiCompat
 From Version 5.0.0-beta.20364.3 -> To Version 5.0.0-beta.20374.1

* Update dependencies from https://github.com/mono/linker build 20200728.1

Microsoft.NET.ILLink.Tasks
 From Version 5.0.0-preview.3.20374.1 -> To Version 5.0.0-preview.3.20378.1

* Update dependencies from https://github.com/microsoft/vstest build 20200730-02

Microsoft.NET.Test.Sdk
 From Version 16.8.0-preview-20200720-01 -> To Version 16.8.0-preview-20200730-02

* Update dependencies from https://github.com/dotnet/runtime-assets build 20200727.1

System.ComponentModel.TypeConverter.TestData , System.Drawing.Common.TestData , System.IO.Compression.TestData , System.IO.Packaging.TestData , System.Net.TestData , System.Private.Runtime.UnicodeData , System.Security.Cryptography.X509Certificates.TestData , System.Windows.Extensions.TestData
 From Version 5.0.0-beta.20364.1 -> To Version 5.0.0-beta.20377.1

* Update dependencies from https://github.com/dotnet/xharness build 20200730.1

Microsoft.DotNet.XHarness.CLI , Microsoft.DotNet.XHarness.TestRunners.Xunit
 From Version 1.0.0-prerelease.20352.3 -> To Version 1.0.0-prerelease.20380.1
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