Fix Nginx keyring

roles/nginx/tasks/main.yaml

@@ -12,6 +12,7 @@
 - name: Import nginx key
   apt_key:
     url: https://nginx.org/keys/nginx_signing.key
+    keyring: /usr/share/keyrings/nginx-archive-keyring.gpg
     state: present
 
 - name: Setup repository