fix: remove the default value of goproxy (#230)

Author: bzp2010

dockerfiles/Dockerfile.dashboard.deb

@@ -11,7 +11,7 @@ RUN /install-common.sh install_dashboard_dependencies_deb
 
 ARG checkout_v="v2.3"
 ARG iteration="0"
-ARG goproxy="https://proxy.golang.com.cn,direct"
+ARG goproxy=""
 ARG IMAGE_BASE
 ARG IMAGE_TAG
 ARG CODE_PATH

dockerfiles/Dockerfile.dashboard.rpm

@@ -22,7 +22,7 @@ RUN /install-common.sh install_dashboard_dependencies_rpm
 
 ARG checkout_v="v2.3"
 ARG iteration="0"
-ARG goproxy="https://proxy.golang.com.cn,direct"
+ARG goproxy=""
 ARG IMAGE_BASE
 ARG IMAGE_TAG
 ARG CODE_PATH