Bug Description:
The appliance_networking_firewall_inbound module in the vmware_rest collection does not set the failed flag to True when a required parameter, such as rules, is missing. Instead, it only returns a message (msg) indicating the missing argument, which can cause tests or playbooks to incorrectly pass when they should fail.

Expected Result:
When the rules parameter is not provided:

• The failed flag should be set to True.
• The module should return a meaningful error message like: "missing required arguments: rules".
• Playbook execution should stop at this task, and the task should be marked as failed.

Example expected output:

mandatory_rule_check: 
  changed: false 
  failed: true 
  msg: "missing required arguments: rules" 

{{}}

Actual Result:
When the rules parameter is not provided:

• The failed flag is incorrectly set to False.
• The module only returns the message: "missing required arguments: rules".
• Playbook execution continues past this task, causing incorrect behavior in automated workflows.

Example actual output:

mandatory_rule_check: 
  changed: false 
  failed: false 
  msg: "missing required arguments: rules"

Steps to Reproduce:

1. Run a playbook using the appliance_networking_firewall_inbound module without specifying the rules parameter.
2. Observe the task result.