Bump python version in workflow (#86)

Author: matthewelwell

.github/workflows/pull-request.yml

@@ -25,7 +25,7 @@ jobs:
         strategy:
             max-parallel: 4
             matrix:
-                python-version: ["3.11"]
+                python-version: ["3.12"]
 
         steps:
             - name: Cloning repo