Bug 1704450 [wpt PR 28441] - Bump eslint from 4.19.1 to 7.24.0 in /webrtc/tools, a=testonly

Automatic update from web-platform-tests
Bump eslint from 4.19.1 to 7.24.0 in /webrtc/tools

Bumps [eslint](https://github.com/eslint/eslint) from 4.19.1 to 7.24.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](https://github.com/eslint/eslint/compare/v4.19.1...v7.24.0)

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

wpt-commits: d867e9f8cc14c2c4103b59630537c2cba10a90e0
wpt-pr: 28441

testing/web-platform/tests/webrtc/tools/package.json

@@ -6,7 +6,7 @@
     "lint": "eslint -c .eslintrc.js ../*.html ../*.js"
   },
   "devDependencies": {
-    "eslint": "^4.11.0",
+    "eslint": "^7.24.0",
     "eslint-plugin-html": "^4.0.0",
     "jscodeshift": "^0.5.1",
     "jsdom": "^11.11.0"