Update NetBird client to 0.73.0 (#96)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

netbird/Makefile

@@ -1,6 +1,6 @@
 PORTNAME=	netbird
 DISTVERSIONPREFIX=	v
-DISTVERSION=	0.72.4
+DISTVERSION=	0.73.0
 CATEGORIES=	security net net-vpn
 
 MAINTAINER=	hakan.external@netbird.io