ci: move macOS test to 3.14t

Signed-off-by: Henry Schreiner <[email protected]>

Author: henryiii

.github/workflows/tests.yml

@@ -114,7 +114,7 @@ jobs:
           - os: windows-latest
             only: cp313-win_amd64
           - os: macos-13
-            only: cp310-macosx_x86_64
+            only: cp314t-macosx_x86_64
           - os: macos-14
             only: cp312-macosx_arm64
           - os: windows-11-arm