Add free threaded Python 3.14t to workflow matrix

Author: cclauss

.github/workflows/push.yml

@@ -37,7 +37,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13', '3.14']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13', '3.14', '3.14t']
         os: [ubuntu-latest, macOs-latest]
     steps:
     - name: Checkout python-for-android