no update pip

Author: bertmelis

.github/workflows/cpplint.yml

@@ -11,10 +11,9 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v5
       with:
-        python-version: '3.10'
+        python-version: '3.11'
     - name: Install dependencies
       run: |
-        python -m pip install --upgrade pip
         pip install cpplint
     - name: Linting
       run: |