Update dependency NUnit.Analyzers to 4.6.0 (#724)

+semver:patch

Author: renovate[bot]

src/FluentNHibernate.Testing/FluentNHibernate.Testing.csproj

@@ -22,7 +22,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
     <PackageReference Include="FakeItEasy" Version="8.3.0" />
     <PackageReference Include="NUnit" Version="4.3.2" />
-    <PackageReference Include="NUnit.Analyzers" Version="4.3.0">
+    <PackageReference Include="NUnit.Analyzers" Version="4.6.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>