Bump express-rate-limit from 6.7.1 to 6.9.0

Bumps [express-rate-limit](https://github.com/express-rate-limit/express-rate-limit) from 6.7.1 to 6.9.0.
- [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...v6.9.0)

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

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

Author: dependabot[bot]

package-lock.json

@@ -20,7 +20,7 @@
     "dotenv": "^16.0.3",
     "email-validator": "^2.0.4",
     "express": "^4.18.2",
-    "express-rate-limit": "^6.7.1",
+    "express-rate-limit": "^6.9.0",
     "express-validator": "^7.0.1",
     "google-auth-library": "^8.9.0",
     "helmet": "^7.0.0",