Change ICANN 2026 deadline to March 30

Updated the deadline for the ICANN 2026 event.

Author: Lukangkang123

conference/AI/icann.yml

@@ -36,7 +36,7 @@
       id: icann2026
       link: https://e-nns.org/icann2026/
       timeline:
-        - deadline: '2026-03-16 23:59:59'
+        - deadline: '2026-03-30 23:59:59'
       timezone: AoE
       date: Sept 14-17, 2026
       place: Conference center of the School of Psychology, University of Padua, Italy