Added bin as pastbin internally and made vars more configurable

Signed-off-by: TuDatTr <tuan-dat.tran@tudattr.dev>

roles/docker/templates/pi/ddns-updater/data/config.json

@@ -2,8 +2,8 @@
     "settings": [
         {
             "provider": "namecheap",
-            "domain": "borg.land",
-            "host": "@",
+            "domain": "{{ local_domain }}",
+            "host": "{{ local_subdomains }}",
             "password": "{{ vault_ddns_borgland_password }}",
             "provider_ip": true
         }