[Snyk] Fix for 4 vulnerabilities

[snyk-bot]

Snyk has created this PR to fix one or more vulnerable packages in the `npm` dependencies of this project.

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • packages/react-scripts/package.json

Vulnerabilities that will be fixed

With an upgrade:

Severity	Issue	Breaking Change	Exploit Maturity
	Denial of Service (DoS) SNYK-JS-SOCKJS-575261	No	Proof of Concept
	Information Exposure SNYK-JS-WEBPACKDEVSERVER-72405	No	No Known Exploit
	Prototype Pollution SNYK-JS-YARGSPARSER-560381	No	Proof of Concept
	Regular Expression Denial of Service (ReDoS) npm:braces:20180219	Yes	Proof of Concept

Commit messages

Package name: webpack-dev-server

The new version differs by 250 commits.

• 4ab1f21 chore(release): 3.11.0
• 0e51fb1 fix: invalidate route (Provide empty mock for dgram module react/create-react-app#2584)
• f857c40 chore: deps and tests
• 41d1d0c fix(deps): security vulnerability in yargs-parser (proxy option not working/webpack-dev-server debugging advice react/create-react-app#2566)
• 375ab23 ci: add node@14 (Server side rendering  react/create-react-app#2530)
• 776e7d4 chore(deps): update dependency html-entities to ^1.3.1 (master) (Deploying to GitHub Pages and using %PUBLIC_URL%  react/create-react-app#2513)
• 984536c chore: update lint-staged config (Unexpected token import when running Non-Related React tests react/create-react-app#2524)
• 89ffb86 feat: add invalidate endpoint (Support relay modern react/create-react-app#2493)
• 0e9bffb chore(deps): update all patch dependencies (URIjs fails with bad hash react/create-react-app#2508)
• 99ccfd8 fix: update jquery (Improve warning message if port needs admin permissions to bind react/create-react-app#2516)
• 06583f2 fix: do not swallow errors from server (Development server on port 80 does not start react/create-react-app#2512)
• 0d5c681 fix(server): don't crash on setupExitSignals(undefined) (Suggestion: Don't collect code coverage from registerServiceWorker.js File react/create-react-app#2507)
• c436058 chore(deps): update all patch dependencies (master) (patch) (Heroku: Module not found  react/create-react-app#2503)
• 4808abd feat(progess): emit progress-update (Optional Sass support - Part 2 react/create-react-app#2498)
• adeb92e feat: allow open option to accept an object (Update webpack links to point to webpack 2 react/create-react-app#2492)
• c6bdfe4 feat(contentBasePublicPath): allow multiple paths (chore(templates): Move GitHub templates to hidden .github folder react/create-react-app#2489)
• f317358 chore(deps): update all patch dependencies (master) (patch) (Cannot install CRA due to scoped module @timer/detect-port react/create-react-app#2481)
• de763e9 chore(deps): update all minor dependencies (master) (minor) (after migrating from 0.9.5 to 1.0.0 i'm getting error message. __webpack_require__.i(...) is not a function react/create-react-app#2473)
• f7b6fa1 chore(deps): update package-lock.json (Component generator (is it worth adding to docs?) react/create-react-app#2482)
• 3bf43a7 chore(deps): update all patch dependencies (why I can't use bundle-loader like this? react/create-react-app#2477)
• 12d76be docs: fix typos across the project (its error from mac code to windows,when i npm start react/create-react-app#2452)
• 9a6e4a1 chore(deps): update all patch dependencies (Allow importing package.json react/create-react-app#2468)
• d4739f8 chore(deps): update dependency husky to v4 (Update webpack to 2.6.1 react/create-react-app#2383)
• 5f357f3 chore(deps): update all patch dependencies (CSS autoprefixer breaking flexbox in Safari react/create-react-app#2450)

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