Use the same version of numpy for build/test

gitlab/conda_build_config.yaml

@@ -56,12 +56,8 @@ pkg_config:
   - 0.29.2
 
 ## The dependencies that we link against
-# anaconda
-# we build for an old version of numpy for forward compatibility
-# 1.11 seems to be the oldest on win that works with scipy 0.19.
 numpy:
-  - 1.9                # [unix]
-  - 1.11               # [win]
+  - 1.13.3
 hdf5:
   - 1.10               # [not ppc64le]
 freetype: