Bump grunt-eslint from 23.0.0 to 24.0.0 in /searx/static/themes/simple

Bumps [grunt-eslint](https://github.com/sindresorhus/grunt-eslint) from 23.0.0 to 24.0.0.
- [Release notes](https://github.com/sindresorhus/grunt-eslint/releases)
- [Commits](https://github.com/sindresorhus/grunt-eslint/compare/v23.0.0...v24.0.0)

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

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

searx/static/themes/simple/package.json

@@ -10,7 +10,7 @@
     "grunt-contrib-uglify": "~5.0.1",
     "grunt-xmlmin": "~0.1.8",
     "grunt-contrib-watch": "~1.1.0",
-    "grunt-eslint": "^23.0.0",
+    "grunt-eslint": "^24.0.0",
     "grunt-stylelint": "^0.16.0",
     "grunt-image": "^6.4.0",
     "ionicons": "^5.5.4",