Bump @cloudflare/workers-types from 4.20240815.0 to 4.20240821.1

Bumps [@cloudflare/workers-types](https://github.com/cloudflare/workerd) from 4.20240815.0 to 4.20240821.1.
- [Release notes](https://github.com/cloudflare/workerd/releases)
- [Changelog](https://github.com/cloudflare/workerd/blob/main/RELEASE.md)
- [Commits](https://github.com/cloudflare/workerd/commits)

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

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -19,7 +19,7 @@
 		"itty-router": "6.0.0"
 	},
 	"devDependencies": {
-		"@cloudflare/workers-types": "4.20240815.0",
+		"@cloudflare/workers-types": "4.20240821.1",
 		"@playform/build": "0.1.3",
 		"wrangler": "3.72.1"
 	},