Bump express-rate-limit from 6.7.1 to 6.8.0

Bumps [express-rate-limit](https://github.com/express-rate-limit/express-rate-limit) from 6.7.1 to 6.8.0.
- [Release notes](https://github.com/express-rate-limit/express-rate-limit/releases)
- [Changelog](https://github.com/express-rate-limit/express-rate-limit/blob/main/changelog.md)
- [Commits](express-rate-limit/express-rate-limit@v6.7.1...v6.8.0)

---
updated-dependencies:
- dependency-name: express-rate-limit
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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