Bump eslint-plugin-vue-scoped-css from 2.5.0 to 2.6.0 in /frontend

Bumps [eslint-plugin-vue-scoped-css](https://github.com/future-architect/eslint-plugin-vue-scoped-css) from 2.5.0 to 2.6.0.
- [Release notes](https://github.com/future-architect/eslint-plugin-vue-scoped-css/releases)
- [Changelog](https://github.com/future-architect/eslint-plugin-vue-scoped-css/blob/master/CHANGELOG.md)
- [Commits](future-architect/eslint-plugin-vue-scoped-css@v2.5.0...v2.6.0)

---
updated-dependencies:
- dependency-name: eslint-plugin-vue-scoped-css
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

frontend/package.json

@@ -96,7 +96,7 @@
     "eslint-plugin-prettier": "^5.0.0",
     "eslint-plugin-testing-library": "^6.2.0",
     "eslint-plugin-vue": "^9.19.2",
-    "eslint-plugin-vue-scoped-css": "^2.5.0",
+    "eslint-plugin-vue-scoped-css": "^2.6.0",
     "eslint-plugin-vuejs-accessibility": "^2.2.0",
     "jest-fail-on-console": "^3.1.1",
     "jsdom": "^22.1.0",