Update dependency NSubstitute to v5 (nhibernate#3283)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

src/NHibernate.Test/NHibernate.Test.csproj

@@ -61,7 +61,7 @@
     <PackageReference Include="NHibernate.Caches.Util.JsonSerializer" Version="5.8.0" />
     <PackageReference Include="System.Data.SQLite.Core" Version="1.0.115.5" />
     <PackageReference Include="System.Linq.Dynamic.Core" Version="1.2.12" />
-    <PackageReference Include="NSubstitute" Version="4.4.0" />
+    <PackageReference Include="NSubstitute" Version="5.0.0" />
     <PackageReference Include="NUnit" Version="3.13.2" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.2.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.0.0" />