simplify things

Author: ebsmothers

.github/workflows/unit_test.yaml

@@ -12,7 +12,7 @@ jobs:
     timeout-minutes: 15
     strategy:
       matrix:
-        python-version: ['3.10', '3.11', '3.12']
+        python-version: ['3.10']
     steps:
       - name: Check out repo
         uses: actions/checkout@v4