[ARFC] Oracle Deprecation for Long-tail Assets Across Aave V2 and V3

Summary

LlamaRisk proposes deprecating Chainlink price feeds for a set of long-tail assets deployed across Aave V2 or V3 reserves, feeds that Chainlink itself has classified as high or very high operational risk as the underlying assets have lost meaningful adoption and liquidity, leaving too little trading activity to price them reliably. The set spans 10 deployments, part of which are already deprecated, with aggregate affected supply of $6.76M and aggregate debt of $4.29M.

Previously applied as part of [Aave V2 Continued Deprecation Steps](https://governance.aave.com/t/arfc-continued-d…