Bump webpack-dev-middleware from 3.7.3 to 4.0.2

Bumps [webpack-dev-middleware](https://github.com/webpack/webpack-dev-middleware) from 3.7.3 to 4.0.2.
- [Release notes](https://github.com/webpack/webpack-dev-middleware/releases)
- [Changelog](https://github.com/webpack/webpack-dev-middleware/blob/master/CHANGELOG.md)
- [Commits](webpack/webpack-dev-middleware@v3.7.3...v4.0.2)

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

Author: dependabot[bot]

package.json

@@ -108,7 +108,7 @@
     "watchify": "^3.11.1",
     "webpack": "^5.1.3",
     "webpack-cli": "^4.1.0",
-    "webpack-dev-middleware": "^3.7.2",
+    "webpack-dev-middleware": "^4.0.2",
     "webpack-node-externals": "^2.5.2"
   },
   "dependencies": {