Also test on 3.14 threaded

Author: rhpvorderman

.github/workflows/ci.yml

@@ -58,6 +58,7 @@ jobs:
           - "3.12"
           - "3.13"
           - "3.14"
+          - "3.14t"
           - "pypy-3.10"
           - "pypy-3.11"
         os: ["ubuntu-latest"]