Safe Network Testnet: ClientImprovementNet [22/09/23]

Another day another #testnet! After the last IntolerantNodeNet, we’re looking more concretely at the client. One part of the last testnet was aiming to see how clients performed with the concurrency and batch-size arguments, but a bug in StoreCost retrieval largely scuppered that effort. Here we want to: Confirm our fix is in place for that. Further explore how concurrency and batch size affect uploads. Start to look at how kad caching affects downloads of popular data. In addition to some smaller fixes, we now have a ne...