Securize the index based lookup of dict.keys() (#54452)

lib/ansible/modules/cloud/vmware/vmware_cfg_backup.py

@@ -114,7 +114,7 @@ class VMwareConfigurationBackup(PyVmomi):
                 self.module.fail_json(msg="Failed to find ESXi %s" % self.esxi_hostname)
 
         host_system = get_all_objs(self.content, [vim.HostSystem])
-        return host_system.keys()[0]
+        return list(host_system)[0]
 
     def process_state(self):
         if self.state == 'saved':

lib/ansible/modules/cloud/vmware/vmware_dns_config.py

@@ -108,7 +108,7 @@ def main():
         host = get_all_objs(content, [vim.HostSystem])
         if not host:
             module.fail_json(msg="Unable to locate Physical Host.")
-        host_system = host.keys()[0]
+        host_system = list(host)[0]
         changed = configure_dns(host_system, change_hostname_to, domainname, dns_servers)
         module.exit_json(changed=changed)
     except vmodl.RuntimeFault as runtime_fault:

lib/ansible/modules/cloud/vmware/vmware_vmkernel_ip_config.py

@@ -104,7 +104,7 @@ def main():
         host = get_all_objs(content, [vim.HostSystem])
         if not host:
             module.fail_json(msg="Unable to locate Physical Host.")
-        host_system = host.keys()[0]
+        host_system = list(host)[0]
         changed = configure_vmkernel_ip_address(host_system, vmk_name, ip_address, subnet_mask)
         module.exit_json(changed=changed)
     except vmodl.RuntimeFault as runtime_fault:

lib/ansible/modules/cloud/vmware/vmware_vsan_cluster.py

@@ -108,7 +108,7 @@ def main():
         host = get_all_objs(content, [vim.HostSystem])
         if not host:
             module.fail_json(msg="Unable to locate Physical Host.")
-        host_system = host.keys()[0]
+        host_system = list(host)[0]
         changed, result, cluster_uuid = create_vsan_cluster(host_system, new_cluster_uuid)
         module.exit_json(changed=changed, result=result, cluster_uuid=cluster_uuid)