Unity MCP UPM package doesn't have a signature

[tarmojussila]

Issue description

The Unity MCP UPM package doesn't have a signature and is marked with a warning symbol in Unity package manager.

Unity Package Manager

To protect your project, the recommended best practice is to use only signed packages.

• Description: "Unity can't verify this package because it doesn't have a signature. Use signed packages to reduce risk to your project."
• Details: "Signature: Missing"

Unity version

Starting with Unity 6.3, the Package Manager checks for digital package signatures on all tarball packages used in the Unity ecosystem.

Recommended solution

As a package consumer, ask the package owner to publish a version of the package with a signature, then install the signed version.
As a package publisher, sign your package, then distribute the signed version.

Additional details

Link to Unity's Package signatures documentation: https://docs.unity3d.com/6000.3/Documentation/Manual/upm-signature.html

[Scriptwonder]

@JosvanderWesthuizen @msanatan
I think it would need Coplay's organization id for this signature