chore(deps): bump koa from 2.15.0 to 2.15.4 (#3400)

Bumps [koa](https://github.com/koajs/koa) from 2.15.0 to 2.15.4.
- [Release notes](https://github.com/koajs/koa/releases)
- [Changelog](https://github.com/koajs/koa/blob/2.15.4/History.md)
- [Commits](koajs/koa@2.15.0...2.15.4)

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

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

Author: dependabot[bot]

.yarn/cache/koa-npm-2.15.0-c7a3135c58-8063140a80.zip

@@ -16532,8 +16532,8 @@ __metadata:
   linkType: hard
 
 "koa@npm:^2.13.0":
-  version: 2.15.0
-  resolution: "koa@npm:2.15.0"
+  version: 2.15.4
+  resolution: "koa@npm:2.15.4"
   dependencies:
     accepts: "npm:^1.3.5"
     cache-content-type: "npm:^1.0.0"
@@ -16558,7 +16558,7 @@ __metadata:
     statuses: "npm:^1.5.0"
     type-is: "npm:^1.6.16"
     vary: "npm:^1.1.2"
-  checksum: 10/8063140a80f274f5075880cb4b19bdc7e7ce34a590fc4a7b6ae9c6876f93cfe099276769767419da5d74c1a74ead63437ecc90e9bc23edce9236656743d27350
+  checksum: 10/98de77173822f0a28c0f5d1ebd261ab02f3f905d40602e51957a0c7202122647a60c5b6c59be03361dd24bf6a5685eac97af84b306914efd057751e71f93cb0f
   languageName: node
   linkType: hard