fix: set provider_visibility back to public to workaround provider …

…bug IBM-Cloud/terraform-provider-ibm#5828  (#234)

solutions/banking/variables.tf

@@ -6,7 +6,8 @@ variable "ibmcloud_api_key" {
 variable "provider_visibility" {
   description = "Set the visibility value for the IBM terraform provider. Supported values are `public`, `private`, `public-and-private`. [Learn more](https://registry.terraform.io/providers/IBM-Cloud/ibm/latest/docs/guides/custom-service-endpoints)."
   type        = string
-  default     = "private"
+  # Defaulting this to public to workaround https://github.com/IBM-Cloud/terraform-provider-ibm/issues/5828
+  default = "public"
 
   validation {
     condition     = contains(["public", "private", "public-and-private"], var.provider_visibility)