Upgrade NUnit package to v4.1.0

Author: YevgeniyShunevych

test/Atata.Configuration.Json.Tests/Atata.Configuration.Json.Tests.csproj

@@ -10,7 +10,7 @@
     <PackageReference Include="FluentAssertions" Version="6.12.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <PackageReference Include="NLog" Version="5.2.8" />
-    <PackageReference Include="NUnit" Version="4.0.1" />
+    <PackageReference Include="NUnit" Version="4.1.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
   </ItemGroup>