Bump Microsoft.NET.Test.Sdk from 16.1.1 to 16.2.0 (#55)

Bumps [Microsoft.NET.Test.Sdk](https://github.com/microsoft/vstest) from 16.1.1 to 16.2.0.
- [Release notes](https://github.com/microsoft/vstest/releases)
- [Commits](microsoft/vstest@v16.1.1...v16.2.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

test/NLog.MailKit.Tests/NLog.MailKit.Tests.csproj

@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.1.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.2.0" />
     <PackageReference Include="SmtpServer" Version="5.3.0" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1">