fix: update bgp peer port logic

Signed-off-by: Devin Buhl <devin@buhl.casa>

bootstrap/templates/kubernetes/apps/kube-system/cilium/config/cilium-l3.yaml.j2

@@ -16,9 +16,7 @@ spec:
         #% for item in bootstrap_bgp.peers %#
         - peerAddress: "#{ item }#/32"
           peerASN: #{ bootstrap_bgp.peer_asn }#
-        #% if bootstrap_bgp.peer_port %#
-          peerPort: #{ bootstrap_bgp.peer_port }#
-        #% endif %#
+          peerPort: #{ bootstrap_bgp.peer_port | default(179) }#
         #% endfor %#
         #% else %#
         #% if bootstrap_node_default_gateway %#