🙏 Agent ID cmdlets should optionally accept a UPN as an input when setting Sponsor or Owner, in addition to objectId

[jesakowi]

Describe the feature

Agent ID cmdlets (incl. Invoke‑EntraBetaAgentIdInteractive and the New-* cmdlets for each object) should optionally accept a UPN as an input when setting Sponsor or Owner, in addition to objectId.

How will this feature enhance your project and further the project’s overall goals? Who will benefit from this feature (i.e. all users; the project team)?
This will simplify the experience for users who know the UPN(s) off the top of their head.