fix: workaround provider idempotent issue (#251)

Co-authored-by: Steve Peggs <[email protected]>

Author: shemau

main.tf

@@ -171,7 +171,8 @@ resource "ibm_database" "elasticsearch" {
       # Ignore changes to these because a change will destroy and recreate the instance
       version,
       key_protect_key,
-      backup_encryption_key_crn
+      backup_encryption_key_crn,
+      connectionstrings # https://github.com/IBM-Cloud/terraform-provider-ibm/issues/5546
     ]
   }