Update python versions

Author: markstory

.github/workflows/ci.yml

@@ -10,9 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        # Builds are failing with py3.9+ because sphinx templates are different.
-        # python: ['3.7', '3.8', '3.9', '3.10', '3.11']
-        python: ['3.7', '3.8']
+        python: ['3.10', '3.11', '3.12']
       fail-fast: false
 
     permissions: