disable caching when installing requirements

Author: msarkis-icr

.github/workflows/python-package-ci.yml

@@ -24,7 +24,7 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         python -m pip install flake8 pytest
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+        if [ -f requirements.txt ]; then pip install --no-cache-dir -r requirements.txt; fi
     - name: Verify Streamlit app
       run: |
         timeout 10s streamlit run index.py || code=$?; if [[ $code -ne 124 && $code -ne 0 ]]; then exit $code; fi