Bump webpack from 5.3.2 to 5.4.0

Bumps [webpack](https://github.com/webpack/webpack) from 5.3.2 to 5.4.0.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](webpack/webpack@v5.3.2...v5.4.0)

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

Author: dependabot[bot]

package.json

@@ -29,7 +29,7 @@
     "stylelint-order": "4.1.0",
     "stylelint-scss": "3.18.0",
     "stylelint-webpack-plugin": "2.1.1",
-    "webpack": "5.3.2",
+    "webpack": "5.4.0",
     "webpack-cli": "4.1.0"
   },
   "optionalDependencies": {