_content/blog: correct container-aware GOMAXPROCS date

Change-Id: I6a6a636cc92c9d51a4824fe6f1ffc243aebf265e
Reviewed-on: https://go-review.googlesource.com/c/website/+/697695
Auto-Submit: Michael Pratt <mpratt@google.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
diff --git a/_content/blog/container-aware-gomaxprocs.md b/_content/blog/container-aware-gomaxprocs.md
index 70fbafd..5879e05 100644
--- a/_content/blog/container-aware-gomaxprocs.md
+++ b/_content/blog/container-aware-gomaxprocs.md
@@ -1,6 +1,6 @@
 ---
 title: Container-aware GOMAXPROCS
-date: 2025-08-19
+date: 2025-08-20
 by:
 - Michael Pratt
 - Carlos Amedee