ci: Upgrade checkout to v6.0.3 and patch-pin setup-python to v6.2.0 (node24-native)

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

Author: jparrabedoya

.github/workflows/ci.yml

@@ -13,9 +13,9 @@ jobs:
       matrix:
         python: ['3.8', '3.9', '3.10', '3.11']
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6.0.3
       - name: Setup python
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@v6.2.0
         with:
           python-version: ${{ matrix.python }}
       - run: ./scripts/build

.github/workflows/semgrep.yml

@@ -17,6 +17,6 @@ jobs:
   run:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6.0.3
       - uses: r7kamura/semgrepper@v0
         continue-on-error: true