chore(deps): bump NUnit.Analyzers from 0.2.0 to 0.6.0

Bumps [NUnit.Analyzers](https://github.com/nunit/nunit.analyzers) from 0.2.0 to 0.6.0.
- [Release notes](https://github.com/nunit/nunit.analyzers/releases)
- [Changelog](https://github.com/nunit/nunit.analyzers/blob/master/CHANGES.txt)
- [Commits](nunit/nunit.analyzers@0.2.0...0.6.0)

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

Author: dependabot-preview[bot]

src/Directory.Build.props

@@ -38,7 +38,7 @@
     <PackageReference Include="nunit" Version="3.12.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.17.0-beta.1" PrivateAssets="all"/>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
-    <PackageReference Include="NUnit.Analyzers" Version="0.2.0"  PrivateAssets="all"/>
+    <PackageReference Include="NUnit.Analyzers" Version="0.6.0"  PrivateAssets="all"/>
   </ItemGroup>
 
   <PropertyGroup>