Use current ambient probe for preview rendering

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/MaterialGraphPreviewGenerator.cs

                 m_Camera.orthographic = true;
             }
 
+            var ambientProbe = RenderSettings.ambientProbe;
+            RenderSettings.ambientProbe = ambientProbe;
-
 
             EditorUtility.SetCameraAnimateMaterialsTime(m_Camera, time);
             Light0.enabled = true;