add role tag to certbot role

roles/certbot/tasks/main/validate_cert.yaml

@@ -1,11 +1,15 @@
+---
 - name: validate dns-01-acme-dns challenge type config
+  tags: [ "certbot" ]
   when: item.challengeType == "dns-01-acme-dns"
   block:
     - name: assert dns_01_acme_dns config exists
+      tags: [ "certbot" ]
       ansible.builtin.assert:
         that: item.dns_01_acme_dns is defined
 
     - name: assert dns_01_acme_dns config is valid
+      tags: [ "certbot" ]
       ansible.builtin.validate_argument_spec:
         argument_spec: "{{ required_data }}"
         provided_arguments: