Install terka package locally when running pytest.yaml

.github/workflows/pytest.yml

@@ -21,7 +21,7 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install pytest
-          if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+          pip install -e .
       - name: Test with pytest
         run: |
           pytest tests/*.py