all: use Go 1.21's binary.NativeEndian

We still use josharian/native (hi @josharian!) via
netlink, but I also sent https://github.com/mdlayher/netlink/pull/220

Updates #8632

Change-Id: I2eedcb7facb36ec894aee7f152c8a1f56d7fc8ba
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>

go.mod

@@ -52,7 +52,6 @@ require (
 	github.com/inetaf/tcpproxy v0.0.0-20240214030015-3ce58045626c
 	github.com/insomniacslk/dhcp v0.0.0-20231206064809-8c70d406f6d2
 	github.com/jellydator/ttlcache/v3 v3.1.0
-	github.com/josharian/native v1.1.1-0.20230202152459-5c7d0dd6ab86
 	github.com/jsimonetti/rtnetlink v1.4.0
 	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51
 	github.com/klauspost/compress v1.17.11
@@ -152,6 +151,7 @@ require (
 	github.com/google/pprof v0.0.0-20240409012703-83162a5b38cd // indirect
 	github.com/gorilla/securecookie v1.1.2 // indirect
 	github.com/jjti/go-spancheck v0.5.3 // indirect
+	github.com/josharian/native v1.1.1-0.20230202152459-5c7d0dd6ab86 // indirect
 	github.com/karamaru-alpha/copyloopvar v1.0.8 // indirect
 	github.com/macabu/inamedparam v0.1.3 // indirect
 	github.com/moby/docker-image-spec v1.3.1 // indirect