Add freethreaded python 3.14 to matrix to test

Author: ljstella

.github/workflows/testEndToEnd.yml

@@ -10,7 +10,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python_version: ['3.12', '3.13', '3.14']
+        python_version: ['3.12', '3.13', '3.14', '3.14t']
         operating_system: ['ubuntu-24.04', 'macos-15', 'windows-2022']
         #operating_system: ["ubuntu-20.04", "ubuntu-22.04", "macos-latest"]
 

.github/workflows/test_against_escu.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python_version: ['3.12', '3.13', '3.14']
+        python_version: ['3.12', '3.13', '3.14', '3.14t']
 
         operating_system: ['ubuntu-24.04', 'macos-15']
         # Do not test against ESCU until known character encoding issue is resolved