[Snyk] Upgrade socket.io from 1.7.4 to 4.5.0#19

ukmadlz wants to merge 1 commit intomasteribm-watson-data-lab/simple-notification-service:masterfrom

snyk-upgrade-2e7dbe5d95fb3211073fa184979b888cibm-watson-data-lab/simple-notification-service:snyk-upgrade-2e7dbe5d95fb3211073fa184979b888cCopy head branch name to clipboard