[release-branch.go1.25] go1.25.9

Change-Id: Ia7f7e69f363309b6367594275174fcfa8e886541
Reviewed-on: https://go-review.googlesource.com/c/go/+/763700
TryBot-Bypass: Gopher Robot <gobot@golang.org>
Reviewed-by: Junyang Shao <shaojunyang@google.com>
Reviewed-by: David Chase <drchase@google.com>
Auto-Submit: Gopher Robot <gobot@golang.org>
diff --git a/VERSION b/VERSION
index f5c0b98..955b287 100644
--- a/VERSION
+++ b/VERSION
@@ -1,2 +1,2 @@
-go1.25.8
-time 2026-03-05T20:45:11Z
+go1.25.9
+time 2026-03-27T21:58:29Z