deps: update timezone to 2026b

PR-URL: #62962
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Signed-off-by: Juan José Arboleda <soyjuanarbol@gmail.com>

Author: nodejs-github-bot

deps/icu-small/source/data/in/icudt78l.dat.bz2

@@ -1 +1 @@
-2026a
+2026b