Update CHANGES for PR #9509

Author: tk0miya

CHANGES

@@ -21,6 +21,7 @@ Bugs fixed
 ----------
 
 * #9487: autodoc: typehint for cached_property is not shown
+* #9509: autodoc: AttributeError is raised on failed resolving typehints
 * #9481: autosummary: some warnings contain non-existing filenames
 * #9481: c domain: some warnings contain non-existing filenames
 * #9481: cpp domain: some warnings contain non-existing filenames