Force creation of environment.

.gitlab-ci.yml

 before_script:
   - module add   python/2.7.14-anaconda
+  - conda env remove --name kce_etl
+  - conda env create --file environment.yml
   - pip install --user pytest-pythonpath==0.7.1 pytest-cov==2.5.1
 
 stages:

environment.yml

@@ -3,4 +3,3 @@ channels:
   - conda-forge
 dependencies:
   - conda-forge::pandas=0.24.2
-  - conda-forge::numpy=1.17.3