update python version

Signed-off-by: Zen <[email protected]>

Author: desultory

.github/workflows/ubuntu.yml

@@ -21,10 +21,10 @@ jobs:
       run: |
         git clone https://github.com/desultory/zenlib
         git clone https://github.com/desultory/pycpio
-    - name: Set up Python 3.11
+    - name: Set up Python 3.12
       uses: actions/setup-python@v5
       with:
-        python-version: "3.11"
+        python-version: "3.12"
     - name: Install system deps
       run: |
         sudo apt update