ci: fix incorrect (system) python is picked up by uv

Author: wookayin

.github/workflows/ci.yml

@@ -35,10 +35,12 @@ jobs:
           # python3.13: disabled until tensorflow supports
 
     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 uv
         uses: astral-sh/setup-uv@v5