bump ethereum-optimism/optimism to op-challenger/v1.9.1#151

github-actions[bot] wants to merge 1 commit intomaindappnode/DAppNodePackage-op-node:mainfrom

dappnodebot/bump-upstream/ethereum-optimism/optimism@op-challenger/v1.9.1dappnode/DAppNodePackage-op-node:dappnodebot/bump-upstream/ethereum-optimism/optimism@op-challenger/v1.9.1Copy head branch name to clipboard