fix: add type annotations to fetch function in worker.ts

Author: 314systems

packages/cloudflare/src/cli/templates/worker.ts

@@ -14,7 +14,7 @@ export { DOShardedTagCache } from "./.build/durable-objects/sharded-tag-cache.js
 export { BucketCachePurge } from "./.build/durable-objects/bucket-cache-purge.js";
 
 export default {
-	async fetch(request, env, ctx) {
+	async fetch(request: Request, env: CloudflareEnv, ctx: ExecutionContext) {
 		return runWithCloudflareRequestContext(request, env, ctx, async () => {
 			const response = maybeGetSkewProtectionResponse(request);