CCM-10296: fix ses dkim validation domain name

Author: harrim91

infrastructure/terraform/components/app/route53_record_ses_dkim_validation.tf

@@ -2,7 +2,7 @@ resource "aws_route53_record" "ses_dkim_validation" {
   count = 3
 
   zone_id = local.acct.dns_zone["id"]
-  name    = "${aws_ses_domain_dkim.main.dkim_tokens[count.index]}._domainkey"
+  name    = "${aws_ses_domain_dkim.main.dkim_tokens[count.index]}._domainkey.${aws_ses_domain_identity.main.id}"
   type    = "CNAME"
   ttl     = "300"
   records = [