ci: Update python version for GitHub actions, build.yaml

- Update Python version in build steps from 3.12 to 3.12.2
- Ensure consistency in Python version across project files

.github/workflows/build.yaml

@@ -19,7 +19,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: 12
+          python-version: 3.12.2
 
       - name: Setup
         run: make setup