chore(chain): fix visual bug on visualize_batch_state leading to a non-wanted comma#8499

0xMushow wants to merge 1 commit intosigp:unstablesigp/lighthouse:unstablefrom

0xMushow:fix/visualize-batch-no-trailing-comma0xMushow/lighthouse:fix/visualize-batch-no-trailing-commaCopy head branch name to clipboard