chore(updater): move updater packages to pkg/updaters/<name>

internal/pmtud/vpn.go

@@ -1,9 +1,8 @@
 package pmtud
 
 import (
-	"github.com/qdm12/gluetun/internal/constants"
-	"github.com/qdm12/gluetun/internal/constants/vpn"
 	pconstants "github.com/qdm12/gluetun/internal/pmtud/constants"
+	"github.com/qdm12/gluetun/pkg/updaters/constants"
 )
 
 // MaxTheoreticalVPNMTU returns the theoretical maximum MTU for a VPN tunnel
@@ -27,9 +26,9 @@ func MaxTheoreticalVPNMTU(vpnType, network string, ipv6 bool) uint32 {
 		panic("unknown network protocol: " + network)
 	}
 	switch vpnType {
-	case vpn.Wireguard, vpn.AmneziaWg:
+	case constants.Wireguard, constants.AmneziaWg:
 		vpnLinkMTU -= pconstants.WireguardHeaderLength
-	case vpn.OpenVPN:
+	case constants.OpenVPN:
 		vpnLinkMTU -= pconstants.OpenVPNHeaderMaxLength
 	default:
 		panic("unknown VPN type: " + vpnType)