Bump eslint from 8.39.0 to 8.40.0 in /assets

Bumps [eslint](https://github.com/eslint/eslint) from 8.39.0 to 8.40.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/main/CHANGELOG.md)
- [Commits](eslint/eslint@v8.39.0...v8.40.0)

---
updated-dependencies:
- dependency-name: eslint
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

assets/package.json

@@ -12,7 +12,7 @@
   },
   "devDependencies": {
     "@babel/eslint-parser": "^7.21.8",
-    "eslint": "^8.39.0",
+    "eslint": "^8.40.0",
     "eslint-plugin-mirego": "^1.0.0",
     "prettier": "^2.8.8",
     "stylelint": "^15.6.1",