Update ci.yml

.github/workflows/ci.yml

@@ -21,18 +21,18 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
           python-version: "3.12"
 
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install -r .github/ci-requirements.txt
+          python -m pip install flake8
+          python -m pip install -r .github/ci-requirements.txt
 
       - name: Lint with flake8
         run: |
-          pip install flake8
           flake8 .
 
       - name: Test with pytest