deps(go): bump github.com/ethereum/go-ethereum from 1.14.12 to 1.15.9#729

dependabot[bot] wants to merge 1 commit intomainoasisprotocol/oasis-web3-gateway:mainfrom

dependabot/go_modules/github.com/ethereum/go-ethereum-1.15.9oasisprotocol/oasis-web3-gateway:dependabot/go_modules/github.com/ethereum/go-ethereum-1.15.9Copy head branch name to clipboard