chore(deps): bump koa from 2.15.4 to 2.16.1 in /benchmarks

Bumps [koa](https://github.com/koajs/koa) from 2.15.4 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@2.15.4...v2.16.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

benchmarks/package.json

@@ -43,7 +43,7 @@
     "hsts": "^2.1.0",
     "ienoopen": "^1.0.0",
     "inquirer": "^8.0.0",
-    "koa": "^2.15.4",
+    "koa": "^2.16.1",
     "koa-isomorphic-router": "^1.0.0",
     "koa-router": "^10.0.0",
     "make-promises-safe": "^5.1.0",

benchmarks/yarn.lock

@@ -766,7 +766,7 @@ __metadata:
     hsts: "npm:^2.1.0"
     ienoopen: "npm:^1.0.0"
     inquirer: "npm:^8.0.0"
-    koa: "npm:^2.15.4"
+    koa: "npm:^2.16.1"
     koa-isomorphic-router: "npm:^1.0.0"
     koa-router: "npm:^10.0.0"
     make-promises-safe: "npm:^5.1.0"
@@ -5350,9 +5350,9 @@ __metadata:
   languageName: node
   linkType: hard
 
-"koa@npm:^2.15.4":
-  version: 2.15.4
-  resolution: "koa@npm:2.15.4"
+"koa@npm:^2.16.1":
+  version: 2.16.1
+  resolution: "koa@npm:2.16.1"
   dependencies:
     accepts: "npm:^1.3.5"
     cache-content-type: "npm:^1.0.0"
@@ -5377,7 +5377,7 @@ __metadata:
     statuses: "npm:^1.5.0"
     type-is: "npm:^1.6.16"
     vary: "npm:^1.1.2"
-  checksum: 10/98de77173822f0a28c0f5d1ebd261ab02f3f905d40602e51957a0c7202122647a60c5b6c59be03361dd24bf6a5685eac97af84b306914efd057751e71f93cb0f
+  checksum: 10/f33b95227e48bffd3a682996e6cf72c4ae2992671529c6c914b76d28172219c9cbd8201b16cc028dc25fafc8f1dc9391a6e7e045740a10ee7d89a5631031a974
   languageName: node
   linkType: hard