_content/blog/randv2: correct release number in summary

Fixes golang/go#67322

Change-Id: Iabb9a24533705db7cc50a9c16aee1005cbb5a62f
Reviewed-on: https://go-review.googlesource.com/c/website/+/585035
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>

_content/blog/randv2.md

@@ -3,7 +3,7 @@ title: Evolving the Go Standard Library with math/rand/v2
 date: 2024-05-01
 by:
 - Russ Cox
-summary: Go 1.23 adds math/rand/v2 and charts a course for the evolution of the Go standard library.
+summary: Go 1.22 adds math/rand/v2 and charts a course for the evolution of the Go standard library.
 ---
 
 Since Go 1 was [released in March 2012](/blog/go1),