Bump lint-staged from 14.0.1 to 16.1.5 in /backend

Bumps [lint-staged](https://github.com/lint-staged/lint-staged) from 14.0.1 to 16.1.5.
- [Release notes](https://github.com/lint-staged/lint-staged/releases)
- [Changelog](https://github.com/lint-staged/lint-staged/blob/main/CHANGELOG.md)
- [Commits](lint-staged/lint-staged@v14.0.1...v16.1.5)

---
updated-dependencies:
- dependency-name: lint-staged
  dependency-version: 16.1.5
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]