Update deadline for Globecom 2026 (#1462)

Author: HeRaNO

conference/NW/globecom.yml

@@ -27,7 +27,7 @@
       id: globecom26
       link: https://globecom2026.ieee-globecom.org/
       timeline:
-        - deadline: '2026-04-01 23:59:59'
-      timezone: UTC+8
+        - deadline: '2026-04-15 23:59:59'
+      timezone: UTC-4
       date: December 7-11, 2026
       place: Macao, China