Bump Microsoft.NET.Test.Sdk from 15.3.0 to 16.4.0

Bumps [Microsoft.NET.Test.Sdk](https://github.com/microsoft/vstest) from 15.3.0 to 16.4.0.
- [Release notes](https://github.com/microsoft/vstest/releases)
- [Commits](microsoft/vstest@v15.3.0...v16.4.0)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

test/Exceptionless.RandomData.Tests/Exceptionless.RandomData.Tests.csproj

@@ -15,7 +15,7 @@
 
   <ItemGroup>
     <PackageReference Include="Foundatio.Logging.Xunit" Version="9.0.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.3.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.4.0" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1" />
     <DotNetCliToolReference Include="dotnet-xunit" Version="2.3.0-beta4-build3742" />