feat: support x-machines placement constraints in compose files (#90)

internal/machine/network/tunnel/tunnel.go

@@ -3,13 +3,13 @@ package tunnel
 import (
 	"context"
 	"fmt"
+	"github.com/psviderski/uncloud/internal/secret"
 	"golang.zx2c4.com/wireguard/conn"
 	"golang.zx2c4.com/wireguard/device"
 	"golang.zx2c4.com/wireguard/tun/netstack"
 	"net"
 	"net/netip"
 	"time"
-	"github.com/psviderski/uncloud/internal/secret"
 )
 
 const (