Attempting to fix the publish action.

.gitea/workflows/publish.yaml

@@ -5,7 +5,7 @@ on: [push]
 jobs:
   build:
 
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
 
     steps:
       - name: Checkout code
@@ -14,6 +14,9 @@ jobs:
       - name: Set up Python
         # This is the version of the action for setting up Python, not the Python version.
         uses: https://github.com/actions/setup-python@v5
+        with:
+          # Semantic version range syntax or exact version of a Python version
+          python-version: '3.12.3'
 
       - name: Display Python version
         run: python -c "import sys; print(sys.version)"