fix(ci): prevent mypy package root ambiguity

Mypy was detecting the same files under multiple module names
due to ambiguous package roots. Explicit package bases prevent ambiguity.

Signed-off-by: Kevin Vu te Laar <vu.te@rwth-aachen.de>

Author: Kevin Vu te Laar

.gitlab-ci.yml

@@ -164,7 +164,7 @@ test:python:
     - pytest --verbose .
     - black --line-length=90 --extend-exclude=".*(\\.pyi|_pb2.py)$" --check .
     - flake8 --max-line-length=90 --extend-exclude="*.pyi,*_pb2.py" .
-    - mypy .
+    - mypy --explicit-package-bases .
   image: ${DOCKER_IMAGE_DEV}:${DOCKER_TAG}
   needs:
     - job: "build:source: [fedora]"