build(deps): bump koa from 2.16.3 to 2.16.4 (#5721)

Bumps [koa](https://github.com/koajs/koa) from 2.16.3 to 2.16.4.
- [Release notes](https://github.com/koajs/koa/releases)
- [Changelog](https://github.com/koajs/koa/blob/master/History.md)
- [Commits](koajs/koa@v2.16.3...v2.16.4)

---
updated-dependencies:
- dependency-name: koa
  dependency-version: 2.16.4
  dependency-type: indirect
...

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

Author: dependabot[bot]

yarn.lock

@@ -8228,9 +8228,9 @@ koa-static@^5.0.0:
     koa-send "^5.0.0"
 
 koa@^2.11.0, koa@^2.13.0:
-  version "2.16.3"
-  resolved "https://registry.yarnpkg.com/koa/-/koa-2.16.3.tgz#dd3a250472862cf7a3ef6e25bf325cc9db620ab5"
-  integrity sha512-zPPuIt+ku1iCpFBRwseMcPYQ1cJL8l60rSmKeOuGfOXyE6YnTBmf2aEFNL2HQGrD0cPcLO/t+v9RTgC+fwEh/g==
+  version "2.16.4"
+  resolved "https://registry.yarnpkg.com/koa/-/koa-2.16.4.tgz#303b996f5c3f2a3bb771c7db5e4303ee05f2265f"
+  integrity sha512-3An0GCLDSR34tsCO4H8Tef8Pp2ngtaZDAZnsWJYelqXUK5wyiHvGItgK/xcSkmHLSTn1Jcho1mRQs2ehRzvKKw==
   dependencies:
     accepts "^1.3.5"
     cache-content-type "^1.0.0"