CI: updated requirements + tests

.gitlab-ci.yml

@@ -7,10 +7,11 @@ test-job:
     - python3 -m venv .venv             # Create Python virtual environment
     - source .venv/bin/activate         # Activate Python virtual environment
     - pip3 install -r requirements.txt  # Install Python dependencies
+    - pip3 install pytest               # Install pytest
+    - pytest test/                      # Run tests
     - pip3 install build                # Install build package
     - python3 -m build                  # Build package
     - pip3 install .                    # Install package
-    - python3 test/test.py              # Run tests
 
 pages:
   script:

requirements.txt

 # Libraries
-build
 PyYAML
 Jinja2