upgrade: NUnit.Analyzers 4.14.0

Author: ikpil

test/Box2D.NET.Test/Box2D.NET.Test.csproj

@@ -21,7 +21,7 @@
     </PackageReference>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.6.0" />
     <PackageReference Include="NUnit" Version="4.6.1" />
-    <PackageReference Include="NUnit.Analyzers" Version="4.13.0">
+    <PackageReference Include="NUnit.Analyzers" Version="4.14.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>