Add Python 3.14 to CI workflow matrix

Author: surister

.github/workflows/tests.yml

@@ -27,7 +27,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ['ubuntu-latest']
-        python-version: ['3.13']
+        python-version: ['3.13', '3.14']
 
     env:
       OS: ${{ matrix.os }}