peru_compras_api: High error rate (2025-11)

[jpmckinney]

e.g. over 80% of requests fail.

Not yet freezing in case it fixes itself.

[yolile]

The issue persists, I will change it to peru_compras_bulk in the registry

[jpmckinney]

I'll label this "unavailable" (though it works for <20%), so that we remove it as a broken publication if the error rate persists.