update to node20 actions

.github/workflows/build.yml

@@ -10,17 +10,17 @@ jobs:
       matrix:
         python-version: [ "3.9", "3.10", "3.11" ]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install apt dependencies
         run: |
           sudo apt-get update
           sudo apt-get install openmpi-bin libopenmpi-dev
       - name: Cache pip
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ~/.cache/pip
           key: ${{ runner.os }}-pip-${{ hashFiles('pyproject.toml') }}