Update CHANGES for PR #9079

Author: tk0miya

CHANGES

@@ -19,7 +19,7 @@ Bugs fixed
 ----------
 
 * #9078: autodoc: Async staticmethods and classmethods are considered as non
-  async coroutine-functions
+  async coroutine-functions with Python3.10
 * #8870: The style of toctree captions has been changed with docutils-0.17
 * #9001: The style of ``sidebar`` directive has been changed with docutils-0.17