test: update istio/istio submodule to support networkFilterTypeConfigCache

dinoallo · dinoallo · commit 93b496279fe3 · 2025-06-20T18:40:12.000+08:00
diff --git a/istio/istio b/istio/istio
@@ -1 +1 @@
-Subproject commit b54b6248c9aee5e3106f231156c4e3100033c0ee
+Subproject commit ce473e7cafe14d9b3b9b702e70dbf6f8a969ec8f
