Fix round_robin_web_test_helpers to return 4 items instead of 5#1048

RajsimmanRavi wants to merge 1 commit intoooni:masterooni/backend:masterfrom

RajsimmanRavi:fix_test_round_robin_web_test_helpersRajsimmanRavi/ooni-backend:fix_test_round_robin_web_test_helpersCopy head branch name to clipboard