fix: update Go image version from 1.26.1 to 1.26.2

Dockerfile

@@ -7,7 +7,7 @@
 # =============================================================================
 
 ARG NODE_IMAGE=harbor.linkfog.cn/library/node:24-alpine
-ARG GOLANG_IMAGE=harbor.linkfog.cn/library/golang:1.26.1-alpine
+ARG GOLANG_IMAGE=harbor.linkfog.cn/library/golang:1.26.2-alpine
 ARG ALPINE_IMAGE=harbor.linkfog.cn/library/alpine:3.21
 ARG POSTGRES_IMAGE=harbor.linkfog.cn/library/postgres:18-alpine
 ARG GOPROXY=https://goproxy.cn,direct