build(deps-dev): bump socket.io from 2.2.0 to 2.4.0 in /showcase/resources/reveal#15

dependabot[bot] wants to merge 1 commit intomasterTalkControl/talk-control:masterfrom

dependabot/npm_and_yarn/showcase/resources/reveal/socket.io-2.4.0TalkControl/talk-control:dependabot/npm_and_yarn/showcase/resources/reveal/socket.io-2.4.0Copy head branch name to clipboard