bug#73575: Mate fails to build on i686-linux

[Dariqq]

Hi,

The meta-package for the mate-desktop fails to build on i686-linux due 
to test failures in the dependency graph:

- python-werkzeug
- skia
- node


After skipping these tests with --without-tests the mate build passes.

I have not yet looked into the details why some tests are failing.