chore(deps-dev): bump koa from 3.0.1 to 3.0.3 (#610)

Bumps [koa](https://github.com/koajs/koa) from 3.0.1 to 3.0.3.
- [Release notes](https://github.com/koajs/koa/releases)
- [Changelog](https://github.com/koajs/koa/blob/master/History.md)
- [Commits](koajs/koa@v3.0.1...v3.0.3)

---
updated-dependencies:
- dependency-name: koa
  dependency-version: 3.0.3
  dependency-type: direct:development
...

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

@@ -12961,8 +12961,8 @@ __metadata:
   linkType: hard
 
 "koa@npm:^3.0.1":
-  version: 3.0.1
-  resolution: "koa@npm:3.0.1"
+  version: 3.1.1
+  resolution: "koa@npm:3.1.1"
   dependencies:
     accepts: "npm:^1.3.8"
     content-disposition: "npm:~0.5.4"
@@ -12982,7 +12982,7 @@ __metadata:
     statuses: "npm:^2.0.1"
     type-is: "npm:^2.0.1"
     vary: "npm:^1.1.2"
-  checksum: 10c0/1efb27798490842a285bbb4628b97d5a3b7cfaa96e564f78edb3be9540eb974f3e586bdc84a03d90f784181f6f0238f1ee3270161626481093845ee33b71a8b2
+  checksum: 10c0/2329fa9b2352dbbed8b5073b3b0d5b71678357222c7b8bc4d29e3383fa31c3dc23c6648a3445efa0e6b01e44de0349f8ec2f43d70cd0d37ce7ba1ce50337be15
   languageName: node
   linkType: hard