Bumped Go to patch CVEs (#1781)

Author: sean-jeffrey

Makefile

@@ -15,7 +15,7 @@ GO_BINARY_NAME ?= appgw-ingress
 GOOS ?= linux
 GARCH ?= arm64
 
-BUILD_BASE_IMAGE ?= golang:1.25.7-bookworm
+BUILD_BASE_IMAGE ?= golang:1.25.8-bookworm
 BINARY_BASE_IMAGE ?= mcr.microsoft.com/azurelinux/distroless/base:3.0.20260204
 
 REPO ?= appgwreg.azurecr.io