chore(deps): bump rate-limiter-flexible from 2.4.1 to 4.0.1

Bumps [rate-limiter-flexible](https://github.com/animir/node-rate-limiter-flexible) from 2.4.1 to 4.0.1.
- [Release notes](https://github.com/animir/node-rate-limiter-flexible/releases)
- [Commits](animir/node-rate-limiter-flexible@v2.4.1...v4.0.1)

---
updated-dependencies:
- dependency-name: rate-limiter-flexible
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

package.json

@@ -38,7 +38,7 @@
     "nunjucks-octicons-extension": "1.0.1",
     "passport": "0.6.0",
     "passport-github": "1.1.0",
-    "rate-limiter-flexible": "2.4.1",
+    "rate-limiter-flexible": "4.0.1",
     "yaml": "2.3.4"
   },
   "devDependencies": {