Update content/en/blog/2025/ambient-multicluster/index.md

Fix build to continue review

Author: craigbox

content/en/blog/2025/ambient-multicluster/index.md

@@ -1,7 +1,7 @@
 ---
 title: Introducint Ambient Multicluster
 description: How Ambient Multicluster lets you connect multiple clusters in a single ambient mesh.
-publishdate: 08-04-2025
+date: 2025-08-04
 attribution: Steven Jin Xuan (Microsoft)
 keywords: [ambient,multicluster]
 ---