Consolidate docker-compose files

[alanshaw]

refs https://github.com/web3-storage/web3.storage/pull/1455#discussion_r897851572

In NFT.Storage we have just 1 compose file that sets up all the things but we have multiple in Web3.Storage. https://github.com/nftstorage/nft.storage/blob/main/packages/api/docker/docker-compose.yml

If we want to keep the separation then I'm fine with a compose of composes is that's a thing.