Update BASE_VERSION to master-2025-10-01T19-01-35 (istio#57841)

Author: istio-testing

Makefile.core.mk

@@ -49,7 +49,7 @@ endif
 export VERSION
 
 # Base version of Istio image to use
-BASE_VERSION ?= master-2025-09-25T19-01-32
+BASE_VERSION ?= master-2025-10-01T19-01-35
 ISTIO_BASE_REGISTRY ?= gcr.io/istio-release
 
 export GO111MODULE ?= on