deps: update timezone to 2026a

PR-URL: #62164
Reviewed-By: Michaël Zasso <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: Marco Ippolito <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>

Author: nodejs-github-bot

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

@@ -1 +1 @@
-2025c
+2026a