CI: install silx after basic requirements

.gitlab-ci.yml

@@ -19,12 +19,13 @@ test:
     - source $HOME/.venv/py3/bin/activate
     - python --version
     - which python
-    # Install a version of silx containing not-released-yet features needed for Nabu
-    # Hopefully this wont be needed after the 0.12 release
-    - pip install silx --no-index --find-links http://www.silx.org/pub/nabu/wheels/ --trusted-host www.silx.org
     - pip install --upgrade pip
     - pip install --upgrade setuptools
     - pip install --upgrade numpy
+    # Install a version of silx containing not-released-yet features needed for Nabu
+    # Hopefully this wont be needed after the 0.12 release
+    #~ - pip install six fabio>=0.7 h5py
+    - pip install silx --no-index --find-links http://www.silx.org/pub/nabu/wheels/ --trusted-host www.silx.org
   script:
     - pip install git+https://gitlab.esrf.fr/tomotools/tomoscan.git
     - python -m pip install .