fix: migrate to go.etcd.io import path (#9987)

with the merge of https://github.com/etcd-io/etcd/pull/11823
etcd v3.5.0 will now have a properly imported versioned path

this fixes our pending migration to newer repo

cmd/update.go

@@ -32,6 +32,7 @@ import (
 	"time"
 
 	"github.com/inconshreveable/go-update"
+	"github.com/mattn/go-ieproxy"
 	xhttp "github.com/minio/minio/cmd/http"
 	"github.com/minio/minio/cmd/logger"
 	"github.com/minio/minio/pkg/env"
@@ -408,7 +409,7 @@ const updateTimeout = 10 * time.Second
 
 func getUpdateTransport(timeout time.Duration) http.RoundTripper {
 	var updateTransport http.RoundTripper = &http.Transport{
-		Proxy:                 http.ProxyFromEnvironment,
+		Proxy:                 ieproxy.GetProxyFunc(),
 		DialContext:           xhttp.NewCustomDialContext(timeout),
 		IdleConnTimeout:       timeout,
 		TLSHandshakeTimeout:   timeout,