Bump eslint from 8.14.0 to 8.15.0 in /frontend

Bumps [eslint](https://github.com/eslint/eslint) from 8.14.0 to 8.15.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/main/CHANGELOG.md)
- [Commits](https://github.com/eslint/eslint/compare/v8.14.0...v8.15.0)

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

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

frontend/package.json

@@ -41,7 +41,7 @@
     "@types/node": "^12.11.1",
     "@typescript-eslint/eslint-plugin": "5.23.0",
     "@typescript-eslint/parser": "5.22.0",
-    "eslint": "^8.12.0",
+    "eslint": "^8.15.0",
     "jasmine-core": "~4.1.0",
     "karma": "~6.3.19",
     "karma-chrome-launcher": "~3.1.0",