Update .gitlab-ci.yml

.gitlab-ci.yml

@@ -17,10 +17,12 @@ release:
     stage: release
     before_script:
         - python -V
+        - python -m pip install --upgrade pip
+        - python -m pip list
     script:
-        - pip install --upgrade pip
-        - pip install wheel
-        - pip install twine
+        - python -m pip install -U prettytable
+        - python -m pip install wheel
+        - python -m pip install twine
         - python setup.py sdist bdist_wheel
         - TWINE_PASSWORD=${PYPI_TOKEN} TWINE_USERNAME=__token__
             python -m twine upload --repository pypi dist/*