Orgs on a 'paid plan' (read: launch or scale) get shared-8x 8GB builders

[asib]

Change Summary

If the org in question is on the Launch or Scale plan, they should get an shared-cpu-8x 8GB builder

What and Why:

How:

Related to:

https://community.fly.io/t/remote-builder-out-of-memory-4gb/12842/2

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Documentation

• [ ] Fresh Produce
• [ ] In superfly/docs, or asked for help from docs team
• [ ] n/a