network: Install iproute2 package regularly

Signed-off-by: Maximilian Wilhelm <max@sdn.clinic>

network/init.sls

@@ -10,6 +10,7 @@ include:
 network-pkg:
   pkg.installed:
     - pkgs:
+      - iproute2
       - tcpdump
       - mtr-tiny
       - iperf
@@ -18,10 +19,6 @@ network-pkg:
     - require_in:
       - file: /etc/network/interfaces
 
-iproute2:
-  pkg.latest
-
-
 vnstat:
   pkg.installed:
     - name: vnstat