Update 2023a.md

vseva can attend

docs/devel/irc-meetings/2023a.md

@@ -6,7 +6,7 @@ See more details below.***
 Date:
 
 -   **Proposed: 14:30 UTC, Tuesday, Dec 05, 2023**
-    -   can attend: dcm, ...
+    -   can attend: dcm, vseva, ...
     -   cannot attend:
 
 Time of the meeting across the world: