Bump express from 4.17.1 to 4.17.3 in /demo/spa/spa-monolith#151

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dependabot/npm_and_yarn/demo/spa/spa-monolith/express-4.17.3e-baron/js-modern-web-development:dependabot/npm_and_yarn/demo/spa/spa-monolith/express-4.17.3Copy head branch name to clipboard