Bump json5 and @angular-devkit/build-angular in /communication-app#261

dependabot[bot] wants to merge 1 commit intomasteraleyoshimatsu/angular:masterfrom

dependabot/npm_and_yarn/communication-app/json5-and-angular-devkit/build-angular-2.2.3aleyoshimatsu/angular:dependabot/npm_and_yarn/communication-app/json5-and-angular-devkit/build-angular-2.2.3Copy head branch name to clipboard