Enables customer SH for AFS Splunk App Distribution

prod/aws-us-gov/mdr-prod-afs/195-splunk-apps-s3/terragrunt.hcl

@@ -30,7 +30,7 @@ inputs = {
     Purpose = "Splunk Appliation Distribution"
     Terraform = "aws/${basename(get_parent_terragrunt_dir())}/${path_relative_to_include()}/"
   }
-  has_cust_sh = false
+  has_cust_sh = true
 }
 terraform_version_constraint = "= 1.1.6"
 terragrunt_version_constraint = "= 0.36.2"