build(deps-dev): bump @spotify/prettier-config from 8.0.0 to 9.0.0

Bumps [@spotify/prettier-config](https://github.com/spotify/web-scripts) from 8.0.0 to 9.0.0.
- [Release notes](https://github.com/spotify/web-scripts/releases)
- [Changelog](https://github.com/spotify/web-scripts/blob/master/CHANGELOG.md)
- [Commits](https://github.com/spotify/web-scripts/compare/v8.0.0...v9.0.0)

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

package.json

@@ -45,7 +45,7 @@
     "@changesets/cli": "^2.11.0",
     "@octokit/openapi-types": "^2.0.0",
     "@spotify/eslint-config-oss": "^1.0.1",
-    "@spotify/prettier-config": "^8.0.0",
+    "@spotify/prettier-config": "^9.0.0",
     "command-exists": "^1.2.9",
     "concurrently": "^5.2.0",
     "fs-extra": "^9.0.0",