build(deps-dev): bump webpack-dev-server from 4.15.1 to 5.0.4

Bumps [webpack-dev-server](https://github.com/webpack/webpack-dev-server) from 4.15.1 to 5.0.4.
- [Release notes](https://github.com/webpack/webpack-dev-server/releases)
- [Changelog](https://github.com/webpack/webpack-dev-server/blob/master/CHANGELOG.md)
- [Commits](webpack/webpack-dev-server@v4.15.1...v5.0.4)

---
updated-dependencies:
- dependency-name: webpack-dev-server
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -112,7 +112,7 @@
 		"vega-lite": "5.6.0",
 		"webpack": "^5.75.0",
 		"webpack-cli": "^5.0.1",
-		"webpack-dev-server": "^4.11.1",
+		"webpack-dev-server": "^5.0.4",
 		"webpack-node-externals": "^3.0.0"
 	},
 	"dependencies": {