Bump eslint-plugin-prettier from 3.4.1 to 4.0.0 in /assets

Bumps [eslint-plugin-prettier](https://github.com/prettier/eslint-plugin-prettier) from 3.4.1 to 4.0.0.
- [Release notes](https://github.com/prettier/eslint-plugin-prettier/releases)
- [Changelog](https://github.com/prettier/eslint-plugin-prettier/blob/master/CHANGELOG.md)
- [Commits](https://github.com/prettier/eslint-plugin-prettier/commits/v4.0.0)

---
updated-dependencies:
- dependency-name: eslint-plugin-prettier
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

assets/package-lock.json

@@ -27,7 +27,7 @@
     "css-minimizer-webpack-plugin": "^3.0.2",
     "eslint": "^7.32.0",
     "eslint-config-prettier": "^8.3.0",
-    "eslint-plugin-prettier": "^3.4.1",
+    "eslint-plugin-prettier": "^4.0.0",
     "mini-css-extract-plugin": "^2.2.0",
     "npm-run-all": "^4.1.5",
     "postcss-import": "^14.0.2",