fix(deps): update terraform ibm to latest for deployable architectures (#360)

Author: terraform-ibm-modules-ops

solutions/enterprise/version.tf

@@ -3,7 +3,7 @@ terraform {
   required_providers {
     ibm = {
       source  = "IBM-Cloud/ibm"
-      version = "1.71.3"
+      version = "1.73.0"
     }
     time = {
       source  = "hashicorp/time"