Test on more recent Python builds

Author: SylvainDe

.github/workflows/my_github_action.yml

@@ -156,6 +156,9 @@ jobs:
         - '3.14.0-beta.1'
         - '3.14.0-beta.2'
         - '3.14.0-beta.3'
+        - '3.14.0-beta.4'
+        - '3.14.0-rc.1'
+        - '3.14.0-rc.2'
         - 'pypy-2.7'
         - 'pypy-2.7-nightly'
         - 'pypy-3.6' # the latest available version of PyPy that supports Python 3.6