chore(deps-dev): Bump @nextcloud/eslint-config

Bumps [@nextcloud/eslint-config](https://github.com/nextcloud-libraries/eslint-config) from 9.0.0-rc.7 to 9.0.0-rc.8.
- [Release notes](https://github.com/nextcloud-libraries/eslint-config/releases)
- [Changelog](https://github.com/nextcloud-libraries/eslint-config/blob/main/CHANGELOG.md)
- [Commits](nextcloud-libraries/eslint-config@v9.0.0-rc.7...v9.0.0-rc.8)

---
updated-dependencies:
- dependency-name: "@nextcloud/eslint-config"
  dependency-version: 9.0.0-rc.8
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -49,7 +49,7 @@
     "is-svg": "^6.1.0"
   },
   "devDependencies": {
-    "@nextcloud/eslint-config": "^9.0.0-rc.7",
+    "@nextcloud/eslint-config": "^9.0.0-rc.8",
     "@nextcloud/files": "^3.12.2",
     "@types/node": "^25.0.10",
     "@vitest/coverage-v8": "^4.0.18",