Fix missing with_gvisor build tag for tailscale

protocol/tailscale/dns_transport.go

@@ -1,3 +1,5 @@
+//go:build with_gvisor
+
 package tailscale
 
 import (

protocol/tailscale/endpoint.go

@@ -1,3 +1,5 @@
+//go:build with_gvisor
+
 package tailscale
 
 import (

protocol/tailscale/protect_android.go

@@ -1,3 +1,5 @@
+//go:build with_gvisor
+
 package tailscale
 
 import (

protocol/tailscale/protect_nonandroid.go

@@ -1,4 +1,4 @@
-//go:build !android
+//go:build with_gvisor && !android
 
 package tailscale
 

protocol/tailscale/tun_device_unix.go

@@ -1,4 +1,4 @@
-//go:build !windows
+//go:build with_gvisor && !windows
 
 package tailscale
 

protocol/tailscale/tun_device_windows.go

@@ -1,4 +1,4 @@
-//go:build windows
+//go:build with_gvisor && windows
 
 package tailscale
 

service/derp/service.go

@@ -1,3 +1,5 @@
+//go:build with_gvisor
+
 package derp
 
 import (