Update GenAI SIG meeting time

Author: aabmass

projects/gen-ai.md

@@ -127,10 +127,7 @@ Other languages are not in the scope (yet).
 
 ## Meeting Times
 
-We'll use GenAI Semantic Convention meetings until more suitable time for new participants is determined:
-
-- **Every other week**: Thursday at 10 AM PST
-- **Every other week**: Thursday 14:00 UTC+8
+- Tuesday at 9 AM PST
 
 ### Meeting Links