[Snyk] Upgrade express from 4.18.2 to 4.21.1#6

ShantanuBadmanji wants to merge 1 commit intomainShantanuBadmanji/Garbage-collection-system:mainfrom

snyk-upgrade-44ce7b477264c67e87ebf239c2dba496ShantanuBadmanji/Garbage-collection-system:snyk-upgrade-44ce7b477264c67e87ebf239c2dba496Copy head branch name to clipboard