Hitting Replicated exceeds available credits

Looks like Replicated rate limits have changed and our conformance tests can no longer run:

Error: Failed to queue cluster create: Server responded with 400: {"error":{"message":"Request exceeds available credits. Contact Replicated to buy more credits.","validationError":{"errors":null,"supported_distributions":null}}}

ref: https://github.com/fluxcd/flux2/actions/runs/33379358935/job/99458075850