Mention that bug affecting wxLocale under macOS is fixed in 12.3

Apple seems to have fixed the bug with SVG display (notably affecting
menu items check marks) in the latest macOS version, so update the
documentation to say that only the versions between 11.0 and 12.2 are
affected.

interface/wx/intl.h

@@ -198,12 +198,14 @@ enum wxLocaleInfo
     wxLocale class encapsulates all language-dependent settings and is a
     generalization of the C locale concept.
 
-    @note While this class can still be used in wxMSW and wxGTK ports, it
-        doesn't work in wxOSX where it is impossible to change the application
-        UI locale after launching it. Worse, since macOS 11 (Big Sur), using
-        wxLocale can break application display due to bugs in C locale support
-        in macOS itself. Because of this, it is recommended to use wxUILocale
-        instead of this class for the applications targeting macOS.
+    @note This class is known to have several problems under macOS: first of all,
+        it is impossible to change the application UI locale after launching it
+        under this platform and so using this class doesn't affect the native
+        controls and dialogs there. Additionally, versions of macOS between
+        11.0 and 12.2 inclusive are affected by a bug when changing C locale can
+        break display of the application menus. Because of this, it is
+        recommended to use wxUILocale instead of this class for the
+        applications targeting macOS.
 
     In wxWidgets this class manages current locale. It also initializes and
     activates wxTranslations object that manages message catalogs.