Bump koa from 2.16.2 to 2.16.3

Bumps [koa](https://github.com/koajs/koa) from 2.16.2 to 2.16.3.
- [Release notes](https://github.com/koajs/koa/releases)
- [Changelog](https://github.com/koajs/koa/blob/master/History.md)
- [Commits](koajs/koa@v2.16.2...v2.16.3)

---
updated-dependencies:
- dependency-name: koa
  dependency-version: 2.16.3
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

yarn.lock

@@ -5046,9 +5046,9 @@ koa-static@^5.0.0:
     koa-send "^5.0.0"
 
 koa@^2.15.3:
-  version "2.16.2"
-  resolved "https://registry.yarnpkg.com/koa/-/koa-2.16.2.tgz#1292a3b415a9b9f3dd6872c1835229630a4ecae3"
-  integrity sha512-+CCssgnrWKx9aI3OeZwroa/ckG4JICxvIFnSiOUyl2Uv+UTI+xIw0FfFrWS7cQFpoePpr9o8csss7KzsTzNL8Q==
+  version "2.16.3"
+  resolved "https://registry.yarnpkg.com/koa/-/koa-2.16.3.tgz#dd3a250472862cf7a3ef6e25bf325cc9db620ab5"
+  integrity sha512-zPPuIt+ku1iCpFBRwseMcPYQ1cJL8l60rSmKeOuGfOXyE6YnTBmf2aEFNL2HQGrD0cPcLO/t+v9RTgC+fwEh/g==
   dependencies:
     accepts "^1.3.5"
     cache-content-type "^1.0.0"