Test Python 3.14t on macOS and Linux (#9011)

Author: hugovk

.github/workflows/test.yml

@@ -43,6 +43,7 @@ jobs:
         python-version: [
           "pypy3.11",
           "pypy3.10",
+          "3.14t",
           "3.14",
           "3.13t",
           "3.13",
@@ -55,6 +56,7 @@ jobs:
         - { python-version: "3.11", PYTHONOPTIMIZE: 1, REVERSE: "--reverse" }
         - { python-version: "3.10", PYTHONOPTIMIZE: 2 }
         # Free-threaded
+        - { python-version: "3.14t", disable-gil: true }
         - { python-version: "3.13t", disable-gil: true }
         # M1 only available for 3.10+
         - { os: "macos-13", python-version: "3.9" }