Update secondary pathway seeds#2590

A-Wheeto wants to merge 10 commits into

eng-1260-remove-secondary-certificate-objective-from-codeNCCE/teachcomputing.org:eng-1260-remove-secondary-certificate-objective-from-codefrom

eng-1534-update-pathwaysNCCE/teachcomputing.org:eng-1534-update-pathwaysCopy head branch name to clipboard