Add testing with pyqt5

Closes #146 (closed)

.gitlab-ci.yml

@@ -7,7 +7,9 @@ before_script:
   - apt-get install --yes build-essential cmake libfmt-dev pybind11-dev graphviz python3-pyqt5 xvfb xdg-utils lcov
   - python -m pip install --upgrade pip
   - python --version
-  - pip install pytest pytest-cov sphinx furo numpydoc pytest-xvfb pytest-qt setuptools_scm sphinx-qt-documentation pytest-xdist pytest-mpl pytest-timeout
+  - pip install -r requirements.txt
+  - pip install -r requirements_doc.txt
+  - pip install -r requirements_test.txt
   - pip install $QT_API
   - export PYTEST_QT_API=$QT_API
   - export QT_API=$QT_API