Upgrade actions to latest

.github/workflows/integration.yaml

@@ -54,15 +54,15 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Setup Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
            python-version: ${{ matrix.python-version }}
 
       - name: Cache pip dir
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ~/.cache/pip
           key: pip-cache-${{ matrix.python-version }}-${{ hashFiles('**/setup.py', '**/requirements.txt') }}