Fix System.Diagnostics.DiagnosticSource for MongoDB test

Author: Kielek

test/test-applications/integrations/TestApplication.MongoDB/TestApplication.MongoDB.csproj

@@ -15,9 +15,10 @@
 
   <ItemGroup>
     <PackageReference Include="MongoDB.Driver" VersionOverride="$(LibraryVersion)" />
-    <!-- Workaround! Microsoft.Extensions.Logging.Abstractions v9.0.0 is minimal version supported by auto instrumentation.
+    <!-- Workaround! Microsoft.Extensions.Logging.Abstractions v8.0.0 is minimal version supported by auto instrumentation.
     MongoDB.Driver 2.18+ references older version. It prevents to load required version from Additional Dependencies store-->
-    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" VersionOverride="9.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" VersionOverride="8.0.0" />
+    <PackageReference Include="System.Diagnostics.DiagnosticSource" Condition=" '$(TargetFramework)' == 'net8.0' " />
   </ItemGroup>
 
 </Project>