add fail-fast: true to get quicker feedback

Author: parthea

.github/workflows/unittest.yml

@@ -18,6 +18,7 @@ jobs:
     strategy:
       matrix:
         python: ['3.9', '3.10', "3.11", "3.12", "3.13", "3.14"]
+        fail-fast: true
     steps:
     - name: Checkout
       uses: actions/checkout@v6