Bump @cloudflare/workers-types from 4.20250520.0 to 4.20250521.0

Bumps [@cloudflare/workers-types](https://github.com/cloudflare/workerd) from 4.20250520.0 to 4.20250521.0.
- [Release notes](https://github.com/cloudflare/workerd/releases)
- [Changelog](https://github.com/cloudflare/workerd/blob/main/Dockerfile.release)
- [Commits](https://github.com/cloudflare/workerd/commits)

---
updated-dependencies:
- dependency-name: "@cloudflare/workers-types"
  dependency-version: 4.20250521.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package.json

@@ -29,7 +29,7 @@
 	},
 	"devDependencies": {
 		"@playform/build": "0.2.4",
-		"@cloudflare/workers-types": "4.20250520.0",
+		"@cloudflare/workers-types": "4.20250521.0",
 		"@types/dotenv": "8.2.3",
 		"miniflare": "4.20250508.2",
 		"wrangler": "4.15.2"