multiple provider blocks required due to open feature requests with terraform.

[jameswestall]

Upstream Issue(s):
hashicorp/terraform#25244
hashicorp/terraform#19932

Ideal Code set:

module "Foundry-Project-Areas" {
  for_each        = var.foundry_project_list
  source          = "./Modules/Foundry-Azure-Spoke"
  subscription_id = each.value.subscription_id
  areaPrefix      = each.value.areaPrefix
  customerName    = var.customerName
  deployRegion    = var.deployRegion
  client_id       = var.client_id
  client_secret   = var.client_secret
  tenant_id       = var.tenant_id
}

Notes:
N/A