Bump express-rate-limit from 6.0.5 to 6.2.1

Bumps [express-rate-limit](https://github.com/nfriedly/express-rate-limit) from 6.0.5 to 6.2.1.
- [Release notes](https://github.com/nfriedly/express-rate-limit/releases)
- [Changelog](https://github.com/nfriedly/express-rate-limit/blob/master/changelog.md)
- [Commits](express-rate-limit/express-rate-limit@v6.0.5...v6.2.1)

---
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>

package.json

@@ -44,7 +44,7 @@
     "dotenv": "^10.0.0",
     "express": "^4.17.2",
     "express-jwt": "^6.0.0",
-    "express-rate-limit": "^6.0.5",
+    "express-rate-limit": "^6.2.1",
     "jwks-rsa": "^2.0.3",
     "knex": "^0.95.15",
     "lob": "^6.2.0",