Add sdk version to worker endpoint (#462)

Author: Shubhrakanti

.changeset/cuddly-papayas-explode.md

@@ -0,0 +1,5 @@
+---
+'@livekit/agents': patch
+---
+
+add sdk version to worker endpoint

agents/src/http_server.ts

@@ -13,6 +13,7 @@ interface WorkerResponse {
   agent_name: string;
   worker_type: string;
   active_jobs: number;
+  sdk_version: string;
 }
 
 export class HTTPServer {

agents/src/worker.ts

@@ -327,6 +327,7 @@ export class Worker {
       agent_name: opts.agentName,
       worker_type: JobType[opts.workerType],
       active_jobs: this.activeJobs.length,
+      sdk_version: version,
     }));
   }