Update guide - Include Examples for GPT-5 Support in OpenAI AI Model

[Subhajit97]

Guide to be updated
Update the AI configuration documentation to include the newly launched OpenAI gpt-5 model.

Reason for update
OpenAI recently released the gpt-5 model. We're adding support for it, so the documentation needs to be updated to properly guide users on using this model.

Proposed changes

• Add references to gpt-5 in the AI configuration examples.
• Update notes regarding unsupported parameters (e.g., temperature is ignored for GPT-5).
• Ensure all configuration examples reflect the latest parameter usage and formats.