Bump koa from 2.15.3 to 2.15.4 (#100)

Bumps [koa](https://github.com/koajs/koa) from 2.15.3 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@2.15.3...2.15.4)

---
updated-dependencies:
- dependency-name: koa
  dependency-type: direct:development
...

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

Author: dependabot[bot]

packages/hooks/package.json

@@ -30,7 +30,7 @@
     "@types/aws-lambda": "^8.10.130",
     "@types/koa": "^2.13.6",
     "@types/supertest": "^6.0.2",
-    "koa": "^2.15.0",
+    "koa": "^2.15.4",
     "supertest": "^7.0.0"
   },
   "engines": {