Fix version number

Author: dstansby

.github/workflows/test_and_deploy.yml

@@ -39,7 +39,7 @@ jobs:
       fail-fast: false
       matrix:
         platform: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ["3.11", "3.11", "3.13"]
+        python-version: ["3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@v4