chore(deps): bump koa from 2.15.0 to 2.16.1 (#214)

Bumps [koa](https://github.com/koajs/koa) from 2.15.0 to 2.16.1.
- [Release notes](https://github.com/koajs/koa/releases)
- [Changelog](https://github.com/koajs/koa/blob/master/History.md)
- [Commits](koajs/koa@2.15.0...v2.16.1)

---
updated-dependencies:
- dependency-name: koa
  dependency-version: 2.16.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

yarn.lock

@@ -8598,8 +8598,8 @@ __metadata:
   linkType: hard
 
 "koa@npm:^2.14.1":
-  version: 2.15.0
-  resolution: "koa@npm:2.15.0"
+  version: 2.16.1
+  resolution: "koa@npm:2.16.1"
   dependencies:
     accepts: "npm:^1.3.5"
     cache-content-type: "npm:^1.0.0"
@@ -8624,7 +8624,7 @@ __metadata:
     statuses: "npm:^1.5.0"
     type-is: "npm:^1.6.16"
     vary: "npm:^1.1.2"
-  checksum: 10/8063140a80f274f5075880cb4b19bdc7e7ce34a590fc4a7b6ae9c6876f93cfe099276769767419da5d74c1a74ead63437ecc90e9bc23edce9236656743d27350
+  checksum: 10/f33b95227e48bffd3a682996e6cf72c4ae2992671529c6c914b76d28172219c9cbd8201b16cc028dc25fafc8f1dc9391a6e7e045740a10ee7d89a5631031a974
   languageName: node
   linkType: hard