Update tzdata to version 2025a. (#8422)

Co-authored-by: asfernandes <[email protected]>

Author: github-actions[bot]

extern/icu/tzdata/be.zip

@@ -1 +1 @@
-2024b
+2025a

extern/icu/tzdata/le.zip

@@ -1,6 +1,6 @@
 // The content of this file is generated with help of update-ids utility Do not edit.
 
-static const char* BUILTIN_TIME_ZONE_VERSION = "2024b";
+static const char* BUILTIN_TIME_ZONE_VERSION = "2025a";
 
 // Do not change order of items in this array! The index corresponds to a TimeZone ID, which must be fixed!
 static const char* BUILTIN_TIME_ZONE_LIST[] = {