L-06 [Oval] CoinbaseSourceAdapter May Return Old Prices

[Reinis-FRP]

Addresses audit issue: L-06 [Oval] CoinbaseSourceAdapter May Return Old Prices

In order to limit the staleness of the data returned by source adapters, the maxAge function
has been introduced. It defines the maximum age of prices that can be returned by the
tryLatestDataAt function. However, the CoinbaseSourceAdapter does not use the
maxAge function when it returns historical data as other adapters do. This means that it can
possibly return very old prices.

Consider limiting the staleness of the data returned by the CoinbaseSourceAdapter by
utilizing the maxAge function.

This implements the recommended fix by utilizing the maxAge function in CoinbaseSourceAdapter.

[linear]

UMA-2651 L-06 [Oval] CoinbaseSourceAdapter May Return Old Prices