Announcing Access Temporary Authentication

Introduces Temporary Authentication for Cloudflare Access, allowing security administrators to grant temporary access to applications based on approvals from predefined administrators. This feature extends 'Purpose Justification' by adding scoped permissions and a second approval requirement, sending access requests to a list of approvers who can approve, deny, or grant access for a set duration. Built using Cloudflare Workers, it enables low-latency access requests and reviews, and allows for flexible application of temporary access based on context like device or location.