Use python action in github CI.

.github/workflows/github-ci.yml

@@ -2,10 +2,14 @@ name: Build Maps
 on: [push]
 jobs:
   create-images:
-    runs-on: python:3.11
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.x'
       - name: install requirements
         run: pip install -r requirements.txt
       - name: run script