build(deps-dev): bump eslint from 9.14.0 to 9.15.0 in /webapp

Bumps [eslint](https://github.com/eslint/eslint) from 9.14.0 to 9.15.0.
- [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/v9.14.0...v9.15.0)

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

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

webapp/package.json

@@ -34,7 +34,7 @@
     "@vitejs/plugin-vue": "^5.1.4",
     "@vue/eslint-config-typescript": "^14.1.3",
     "@vue/tsconfig": "^0.5.1",
-    "eslint": "^9.14.0",
+    "eslint": "^9.15.0",
     "eslint-plugin-vue": "^9.30.0",
     "npm-run-all": "^4.1.5",
     "prettier": "^3.3.3",