[Snyk] Security upgrade webpack-dev-server from 2.9.4 to 4.7.3

[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:
  • examples/package.json

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Breaking Change	Exploit Maturity
	658/1000 Why? Proof of Concept exploit, Recently disclosed, Has a fix available, CVSS 5.3	Open Redirect SNYK-JS-NODEFORGE-2330875	Yes	Proof of Concept
	601/1000 Why? Recently disclosed, Has a fix available, CVSS 6.3	Prototype Pollution SNYK-JS-NODEFORGE-2331908	Yes	No Known Exploit

(*) Note that the real score may have changed since the PR was raised.

Commit messages

Package name: webpack-dev-server

The new version differs by 250 commits.

• 5280ee7 docs: fix typo
• d834582 chore(release): 4.7.3
• 7b8c85b chore(deps): update `selfsigned` (#4170)
• d598325 chore: fix lint
• c1907f1 refactor: remove redundant `if` statements (#4158)
• e535f25 ci: debug (#4144)
• 75999bb chore(release): 4.7.2
• 90a96f7 ci: fix (#4143)
• f6bc644 fix: compatible with `onAfterSetupMiddleware`
• 317e4b9 docs: fix testing instructions (#4133)
• ff4550e test: remove redundant test cases related to 3rd party code (#4131)
• 0dd1ee6 test: add e2e tests for `setupExitSignals` option (#4130)
• afe4975 chore(release): 4.1.7
• 4e5d8ea fix: droped `url` package (#4132)
• b0c98f0 chore(release): 4.7.0
• 3138213 chore(deps): update (#4127)
• 8f02c3f feat: added types
• f4fb15f fix: update description of `onAfterSetupMiddleware` and `onBeforeSetupMiddleware` options (#4126)
• 37b73d5 test: add e2e test for `WEBPACK_SERVE` env variable (#4125)
• f5a9d05 chore(deps-dev): bump eslint from 8.4.1 to 8.5.0 (#4121)
• c9b959f chore(deps): bump ws from 8.3.0 to 8.4.0 (#4124)
• 42208aa chore(deps-dev): bump lint-staged from 12.1.2 to 12.1.3 (#4122)
• f440f84 chore(deps): bump express from 4.17.1 to 4.17.2 (#4120)
• c13aa56 feat: added the `setupMiddlewares` option (#4068)

See the full diff

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