fix quotes

Author: holtskinner

.github/workflows/unit-tests.yml

@@ -36,7 +36,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ["3.10", "3.13"]
+        python-version: ['3.10', '3.13']
     steps:
       - name: Checkout code
         uses: actions/checkout@v4