CI: Update Python version in python-publish.yml

Author: WarrenWeckesser

.github/workflows/python-publish.yml

@@ -19,10 +19,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
-    - name: Set up Python 3.10
+    - name: Set up Python 3.12
       uses: actions/setup-python@v4
       with:
-        python-version: '3.10'
+        python-version: '3.12'
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip