perf: increase binary search experiment sample rate to 50% (#9892)

Increase the binary search experiment sample rate from 5% to 50% to gather more performance data on the optimized implementation.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-authored-by: Claude <[email protected]>

Author: GregBrimble

.changeset/fine-candies-do.md

@@ -0,0 +1,5 @@
+---
+"@cloudflare/workers-shared": patch
+---
+
+perf: increase binary search experiment sample rate to 50%

packages/workers-shared/asset-worker/src/worker.ts

@@ -232,7 +232,7 @@ export default class<TEnv extends Env = Env> extends WorkerEntrypoint<TEnv> {
 		pathname: string,
 		_request?: Request
 	): Promise<string | null> {
-		const BINARY_SEARCH_EXPERIMENT_SAMPLE_RATE = 0.05;
+		const BINARY_SEARCH_EXPERIMENT_SAMPLE_RATE = 0.5;
 		const binarySearchVersion =
 			Math.random() < BINARY_SEARCH_EXPERIMENT_SAMPLE_RATE
 				? "current"