deps: update timezone to 2026c

PR-URL: #64588
Reviewed-By: René <contact.9a5d6388@renegade334.me.uk>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

Author: nodejs-github-bot

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

@@ -1 +1 @@
-2026b
+2026c