[Snyk] Upgrade express from 4.17.1 to 4.21.2#22

RobMakesThings wants to merge 1 commit intomasterRobMakesThings/interactivevisualsbubbles:masterfrom

snyk-upgrade-c7841ac767e13efa7847608ca575da1fRobMakesThings/interactivevisualsbubbles:snyk-upgrade-c7841ac767e13efa7847608ca575da1fCopy head branch name to clipboard