[cloud] Fix Route53 module value option, defaulting to empty list (#24555)

lib/ansible/modules/cloud/amazon/route53.py

@@ -411,7 +411,7 @@ def main():
         alias=dict(required=False, type='bool'),
         alias_hosted_zone_id=dict(required=False),
         alias_evaluate_target_health=dict(required=False, type='bool', default=False),
-        value=dict(required=False, type='list'),
+        value=dict(required=False, type='list', default=[]),
         overwrite=dict(required=False, type='bool'),
         retry_interval=dict(required=False, default=500),
         private_zone=dict(required=False, type='bool', default=False),
@@ -565,7 +565,7 @@ def main():
 
     if command_in == 'get':
         if type_in == 'NS':
-            ns = record['values']
+            ns = record.get('values', [])
         else:
             # Retrieve name servers associated to the zone.
             z = invoke_with_throttling_retries(conn.get_zone, zone_in)