chore(deps-dev): bump prettier from 2.0.5 to 2.8.8

Bumps [prettier](https://github.com/prettier/prettier) from 2.0.5 to 2.8.8.
- [Release notes](https://github.com/prettier/prettier/releases)
- [Changelog](https://github.com/prettier/prettier/blob/main/CHANGELOG.md)
- [Commits](prettier/prettier@2.0.5...2.8.8)

---
updated-dependencies:
- dependency-name: prettier
  dependency-version: 2.8.8
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -91,7 +91,7 @@
     "jest": "27.2.4",
     "koa": "2.16.1",
     "nyc": "15.1.0",
-    "prettier": "2.0.5",
+    "prettier": "2.8.8",
     "prettier-plugin-pkgjson": "0.2.8",
     "rollup": "^3.25.3",
     "supertest": "6.1.6"