Microsoft Copilot Studio: Block the use of maker-provided credentials for authentication

By blocking the use of maker's credentials by AI agents, admins can increase the security and compliance of agents in their organizations: - Prevent unauthorized access to sensitive systems or data that the maker's credentials might have access to. - Help organizations comply with data protection regulations (such as GDPR or HIPAA) by ensuring only authorized identities are used for data access. - Enable IT and security teams to enforce organizational policies around identity and access management. - Increase trust among stakeholders and IT departments, making it easier to adopt AI agents at scale.