fix: pin pip version

Author: JaeAeich

.github/workflows/checks.yaml

@@ -21,6 +21,8 @@ jobs:
         run: |
           pip install .
           pip install -r requirements_dev.txt
+      - name: Pin pip version
+        run: python -m pip install --upgrade "pip<24.1"
       - name: Lint with Flake8
         run: flake8 pro_tes/ setup.py
       - name: Lint with Pylint