Support Max plan

When setting this up using `/install-github-app` I only see "Enter a new API key"

<img width="715" alt="Image" src="https://github.com/user-attachments/assets/bfc335ef-6db9-4bc5-9b58-dcb4233c6b1c" />

Is it not possible to use the Max plan allowance with this GitHub action?