Add dependencies that are not scooped up by the test plugins

.gitlab-ci.yml

@@ -3,6 +3,7 @@ run tests:
   image: python:3.8
   script:
     - pip install pytest pytest-cov pytest-mock pytest-flask
+    - pip install Flask-HTTPAuth
     - coverage run -m pytest
     - coverage report
     - coverage xml
@@ -10,4 +11,4 @@ run tests:
     reports:
       cobertura: coverage.xml
   tags:
-    - docker
+    - docker