fix(kubernetes_role): update var kubernetes_config.cluster.prime.name -> nfc_role_kubernetes_prime

variable is depreciated

!74

roles/nfc_kubernetes/templates/k3s-config.yaml.j2

@@ -9,7 +9,7 @@
 {%- if 
   nfc_role_kubernetes_master
     or
-  kubernetes_config.cluster.prime.name | default(inventory_hostname) == inventory_hostname
+  nfc_role_kubernetes_prime | default(inventory_hostname) == inventory_hostname
 -%}
 
   {%
@@ -197,13 +197,13 @@
     }) -%}
 
   {%- elif 
-    kubernetes_config.cluster.prime.name != inventory_hostname
+    nfc_role_kubernetes_prime != inventory_hostname
       and
     not node_k3s.installed
   -%}
 
     {%- set server = (server | default([])) + [
-      "https://" + hostvars[kubernetes_config.cluster.prime.name].ansible_host + ":6443"
+      "https://" + hostvars[nfc_role_kubernetes_prime].ansible_host + ":6443"
     ] -%}
 
     {%- set all_nodes_config = all_nodes_config | combine({
@@ -241,7 +241,7 @@
 {%- if 
   nfc_role_kubernetes_master
     or
-  kubernetes_config.cluster.prime.name | default(inventory_hostname) == inventory_hostname
+  nfc_role_kubernetes_prime | default(inventory_hostname) == inventory_hostname
 -%}
 
   {%- set servers_config = servers_config | combine( all_nodes_config ) -%}