build(deps): bump rate-limiter-flexible from 3.0.4 to 3.0.6 in /src (#6065)

Bumps [rate-limiter-flexible](https://github.com/animir/node-rate-limiter-flexible) from 3.0.4 to 3.0.6.
- [Release notes](https://github.com/animir/node-rate-limiter-flexible/releases)
- [Commits](https://github.com/animir/node-rate-limiter-flexible/commits/v3.0.6)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

src/package.json

@@ -56,7 +56,7 @@
     "npm": "^6.14.18",
     "openapi-backend": "^5.10.5",
     "proxy-addr": "^2.0.7",
-    "rate-limiter-flexible": "^3.0.4",
+    "rate-limiter-flexible": "^3.0.6",
     "rehype": "^13.0.1",
     "rehype-minify-whitespace": "^6.0.0",
     "resolve": "1.22.8",