Update announcements.rst

Author: pchaumeil

docs/src/announcements.rst

@@ -4,7 +4,7 @@ Announcements
 GTDB-Tk 2.4.1 available
 -----------------------
 
-*April 16, 2024*
+*April 16, 2025*
 
 * GTDB-Tk version ``2.4.1`` is now available.
 * This version of GTDB-Tk compatible with the new version of the GTDB-Tk reference package (Release 226).