Update Python on Windows CI

Author: Steve-Tech

.github/workflows/pyinstaller-windows.yml

@@ -11,7 +11,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-            python-version: '3.13' 
+            python-version: '3.14'
             cache: 'pip'
 
       - name: Cache GTK4