chore: add arbitrum-sepolia-testnet to swagger#47

PierreJeanjacquot wants to merge 1 commit intomainiExecBlockchainComputing/iexec-market-api:mainfrom

chore/update-servers-on-swaggeriExecBlockchainComputing/iexec-market-api:chore/update-servers-on-swaggerCopy head branch name to clipboard