fix(ci): fix script to not rely on requirements.txt

Author: jbriones1

.github/workflows/pytest_unit.yml

@@ -26,7 +26,7 @@ jobs:
           python -m pip install --upgrade pip
           python -m venv venv
           source ./venv/bin/activate
-          pip install -r requirements.txt
+          pip install .
 
       - name: Run unit tests
         run: PYTHONPATH=src ./venv/bin/python -m pytest ./tests/unit -v