update dependencies in Flow.Launcher.Test

* Microsoft.CodeCoverage 16.4.0 -> 16.6.1
* Microsoft.NET.Test.Sdk 16.4.0 -> 16.6.1
* Microsoft.TestPlatform.ObjectModel 16.4.0 -> 16.6.1
* Microsoft.TestPlatform.TestHost 16.4.0 -> 16.6.1
* Moq 4.13.1 -> 4.14.1
* NUnit3TestAdapter 3.15.1 -> 3.16.1

Author: JohnTheGr8

Flow.Launcher.Test/Flow.Launcher.Test.csproj

@@ -46,10 +46,13 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Moq" Version="4.13.1" />
+    <PackageReference Include="Moq" Version="4.14.1" />
     <PackageReference Include="nunit" Version="3.12.0" />
-    <PackageReference Include="NUnit3TestAdapter" Version="3.15.1" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.4.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="3.16.1">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
   </ItemGroup>
 
   <ItemGroup>