ci: Remove cache: 'pip' with actions/setup-python to prevent cache-poisoning vulnerability

Author: ecoussoux-ansys

.github/workflows/cicd.yml

@@ -91,7 +91,6 @@ jobs:
           uses: actions/setup-python@7f4fc3e22c37d6ff65e88745f38bd3157c663f7c # v4.9.1
           with:
             python-version: ${{ env.MAIN_PYTHON_VERSION }}
-            cache: 'pip'
 
         - name: Install uv and create venv
           run: |