Disable strongname warning for net8.0 and net9.0 for MQTTnet latest unsigned assembly (#3073)

Author: mrsuciu

Libraries/Opc.Ua.PubSub/Opc.Ua.PubSub.csproj

@@ -37,6 +37,10 @@
 
   <Choose>
     <When Condition="'$(TargetFramework)' == 'net8.0' OR '$(TargetFramework)' == 'net9.0'">
+      <PropertyGroup>
+        <!-- Disable strongname warning as that's not been enforced since .net 5.-->
+        <NoWarn>$(NoWarn);CS8002</NoWarn>
+      </PropertyGroup>
       <ItemGroup>
         <PackageReference Include="MQTTnet" Version="5.0.1.1416" />
       </ItemGroup>