[release-branch.go1.26] go1.26.3

Change-Id: Ifcfb963f256eff89bc1c447b0dd7471d9cd46cc5
Reviewed-on: https://go-review.googlesource.com/c/go/+/775261
Auto-Submit: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Pratt <mpratt@google.com>
TryBot-Bypass: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>

VERSION

diff --git a/VERSION b/VERSION
index 6f84a79..5378f3c 100644
--- a/VERSION
+++ b/VERSION
@@ -1,2 +1,2 @@
-go1.26.2
-time 2026-03-27T21:58:29Z
+go1.26.3
+time 2026-05-04T20:36:18Z