ci(GitHub): Run checks and tests with Python 3.14

Author: stronk7

.github/workflows/test.yml

@@ -16,6 +16,7 @@ jobs:
         include:
           - python: '3.12'
           - python: '3.13'
+          - python: '3.14'
     steps:
       - name: Checkout
         uses: actions/checkout@v5