Fix gitlab.

.gitlab-ci.yml

 before_script:
   - module load python/3.7.x-anaconda
+  - conda env create --file environment.yml
 
 stages:
   - unit
@@ -7,4 +8,10 @@ stages:
 unit_tests:
   stage: unit
   script:
+  - conda activate kce_etl
   - pytest -m unit --cov=./scripts
+
+
+after_script:
+  - conda deactivate
+  - conda env remove --name kce_etl -y