github: Update actions versions

The current versions generate node.js warnings, so update to the latest
versions.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

.github/workflows/ci.yml

@@ -11,9 +11,9 @@ jobs:
         python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies