build(deps-dev): bump eslint from 9.39.4 to 10.8.1 in /Backend

Bumps [eslint](https://github.com/eslint/eslint) from 9.39.4 to 10.8.1.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Commits](eslint/eslint@v9.39.4...v10.8.1)

---
updated-dependencies:
- dependency-name: eslint
  dependency-version: 10.8.1
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

Backend/package-lock.json

@@ -66,7 +66,7 @@
     "@types/node": "^22.10.7",
     "@types/sanitize-html": "^2.13.0",
     "@types/supertest": "^7.2.1",
-    "eslint": "^9.18.0",
+    "eslint": "^10.8.1",
     "eslint-config-prettier": "^10.0.1",
     "eslint-plugin-prettier": "^5.2.2",
     "fast-check": "^4.9.0",