Fix NoMethodError for format_run_start_day in RunSignupsFilenameFinder#11272

nbudin merged 2 commits intomainneinteractiveliterature/intercode:mainfrom

11271-fix-format-run-start-day-method-errorneinteractiveliterature/intercode:11271-fix-format-run-start-day-method-errorCopy head branch name to clipboard