Only test on 3.12

Author: katelouie

.github/workflows/tests.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.11', '3.12']
+        python-version: ['3.12']
 
     steps:
     - uses: actions/checkout@v4