Fix: EEVEE: Better description light probe reduced size message

When the light volume probe cannot be allocated a pool of a different
size is used. A message is displayed to the user. This PR improves the
message by adding the previous size as well.

Ref #129889

Pull Request: https://projects.blender.org/blender/blender/pulls/129963

source/blender/draw/engines/eevee_next/eevee_lightprobe_volume.cc

@@ -77,10 +77,10 @@ void VolumeProbeModule::init()
       }
     }
   }
-
   if (irradiance_pool_size_alloc_ != irradiance_pool_size_) {
     inst_.info_append_i18n(
-        "Warning: Light probes volume pool could not be allocated. Now using a pool of {} MB.",
+        "Warning: Could not allocate light probes volume pool of {} MB, using {} MB instead.",
+        irradiance_pool_size_,
         irradiance_pool_size_alloc_);
   }