Update GitHub Actions

Author: vstinner

.github/workflows/build.yml

@@ -72,10 +72,10 @@ jobs:
 
     steps:
         # https://github.com/actions/checkout
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Setup Python
         # https://github.com/actions/setup-python
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python }}
           allow-prereleases: true
@@ -90,7 +90,7 @@ jobs:
     name: 'Test Python 2.7'
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Python 2.7
         run: |
           sudo apt-get update