Upgrade github.com/nginx/nginx-plus-go-client/v3 to v3.0.1#8401

pdabelf5 merged 3 commits intomainnginx/kubernetes-ingress:mainfrom

deps/nginx-plus-go-client-v3.xnginx/kubernetes-ingress:deps/nginx-plus-go-client-v3.xCopy head branch name to clipboard