build(deps): bump openapi-backend from 5.10.5 to 5.10.6 in /src (#6137)

Bumps [openapi-backend](https://github.com/openapistack/openapi-backend) from 5.10.5 to 5.10.6.
- [Commits](https://github.com/openapistack/openapi-backend/compare/5.10.5...5.10.6)

---
updated-dependencies:
- dependency-name: openapi-backend
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

src/package.json

@@ -55,7 +55,7 @@
     "measured-core": "^2.0.0",
     "mime-types": "^2.1.35",
     "npm": "^6.14.18",
-    "openapi-backend": "^5.10.5",
+    "openapi-backend": "^5.10.6",
     "proxy-addr": "^2.0.7",
     "rate-limiter-flexible": "^4.0.0",
     "rehype": "^13.0.1",