chore(deps): update terraform terraform-ibm-modules/landing-zone/ibm to v6.4.4 (#970)

* chore(deps): update terraform terraform-ibm-modules/landing-zone/ibm to v6.4.4

* chore: update doc

---------

Co-authored-by: surajsbharadwaj <[email protected]>

Author: terraform-ibm-modules-ops

modules/powervs-vpc-landing-zone/README.md

@@ -109,7 +109,7 @@ Creates VPC Landing Zone | Performs VPC VSI OS Config | Creates PowerVS Infrastr
 | <a name="module_client_to_site_vpn"></a> [client\_to\_site\_vpn](#module\_client\_to\_site\_vpn) | terraform-ibm-modules/client-to-site-vpn/ibm | 1.7.24 |
 | <a name="module_configure_monitoring_host"></a> [configure\_monitoring\_host](#module\_configure\_monitoring\_host) | ./submodules/ansible | n/a |
 | <a name="module_configure_network_services"></a> [configure\_network\_services](#module\_configure\_network\_services) | ./submodules/ansible | n/a |
-| <a name="module_landing_zone"></a> [landing\_zone](#module\_landing\_zone) | terraform-ibm-modules/landing-zone/ibm//patterns//vsi//module | 6.4.3 |
+| <a name="module_landing_zone"></a> [landing\_zone](#module\_landing\_zone) | terraform-ibm-modules/landing-zone/ibm//patterns//vsi//module | 6.4.4 |
 | <a name="module_powervs_workspace"></a> [powervs\_workspace](#module\_powervs\_workspace) | terraform-ibm-modules/powervs-workspace/ibm | 2.2.0 |
 | <a name="module_private_secret_engine"></a> [private\_secret\_engine](#module\_private\_secret\_engine) | terraform-ibm-modules/secrets-manager-private-cert-engine/ibm | 1.3.4 |
 | <a name="module_secrets_manager_group"></a> [secrets\_manager\_group](#module\_secrets\_manager\_group) | terraform-ibm-modules/secrets-manager-secret-group/ibm | 1.2.2 |

modules/powervs-vpc-landing-zone/main.tf

@@ -4,7 +4,7 @@
 
 module "landing_zone" {
   source    = "terraform-ibm-modules/landing-zone/ibm//patterns//vsi//module"
-  version   = "6.4.3"
+  version   = "6.4.4"
   providers = { ibm = ibm.ibm-is }
 
   ssh_public_key       = var.ssh_public_key