feat: add new cobbler master

- change cobbler.main.unkin.net to 2098
- change to networkd
- add anycast address for pxeserver
- update dhcp::server hiera with pxeserver address
- frr for el8 cannot set nice
- replace ipxebins class with rpm

hieradata/nodes/ausyd1nxvm1017.main.unkin.net.yaml

@@ -1,5 +1,4 @@
 ---
-profiles::cobbler::params::is_cobbler_master: true
 networking::interfaces:
   ens18:
     ipaddress: 198.18.13.27

hieradata/nodes/ausyd1nxvm2098.main.unkin.net.yaml

@@ -0,0 +1,2 @@
+---
+profiles::cobbler::params::is_cobbler_master: true