Downgrade CompareNETObjects because of a breaking change

https://github.com/GregFinzer/Compare-Net-Objects/issues/259

src/Abc.Zebus.Testing/Abc.Zebus.Testing.csproj

@@ -12,7 +12,7 @@
 
   <ItemGroup>
     <PackageReference Include="AutoFixture" Version="4.17.0" />
-    <PackageReference Include="CompareNETObjects" Version="4.76.0" />
+    <PackageReference Include="CompareNETObjects" Version="4.71.0" />
     <PackageReference Include="Moq" Version="4.17.2" />
     <PackageReference Include="NUnit" Version="3.13.1" />
     <PackageReference Include="System.Management" Version="6.0.0" />

src/Directory.Build.props

@@ -20,7 +20,7 @@
     <ZebusContractsVersion>3.0.0</ZebusContractsVersion>
     <ZebusDirectoryVersion>$(ZebusVersion)</ZebusDirectoryVersion>
     <ZebusPersistenceVersion>$(ZebusVersion)</ZebusPersistenceVersion>
-    <ZebusTestingVersion>$(ZebusVersion)</ZebusTestingVersion>
+    <ZebusTestingVersion>3.10.1</ZebusTestingVersion>
   </PropertyGroup>
 
   <PropertyGroup>