Agenda item for WASI-12-11.md (#1956)

Add an agenda item for
[CM/#578](WebAssembly/component-model#578)

Author: lukewagner

wasi/2025/WASI-12-11.md

@@ -25,4 +25,4 @@ The meeting will be on a zoom.us video conference.
 1. Announcements
     1. _Submit a PR to add your announcement here_
 1. Proposals and discussions
-    1. _Submit a PR to add your announcement here_
+    1. visibility: 'async' change in [CM issue #578](github.com/WebAssembly/component-model/pull/578) (45min)