Bump electron from 3.1.13 to 7.2.4 in /Tools/WinMLDashboard#323

dependabot[bot] wants to merge 1 commit intomastermicrosoft/Windows-Machine-Learning:masterfrom

dependabot/npm_and_yarn/Tools/WinMLDashboard/electron-7.2.4microsoft/Windows-Machine-Learning:dependabot/npm_and_yarn/Tools/WinMLDashboard/electron-7.2.4Copy head branch name to clipboard