disable more volume mocks to run CI

Author: archmoj

test/image/compare_pixels_test.js

@@ -98,6 +98,10 @@ function untestableFilter(mockName) {
         mockName.indexOf('gl2d_') !== -1 ||
         mockName.indexOf('mapbox_') !== -1 ||
         mockName.indexOf('gl3d_cone-') !== -1 ||
+        mockName.indexOf('gl3d_volume_airflow') !== -1 ||
+        mockName.indexOf('gl3d_volume_between-ranges') !== -1 ||
+        mockName.indexOf('gl3d_volume_data-cube') !== -1 ||
+        mockName.indexOf('gl3d_volume_multiple-traces') !== -1 ||
         mockName.indexOf('gl3d_volume_mri') !== -1
     );