tweak default env var

Author: ericallam

apps/webapp/app/env.server.ts

@@ -690,7 +690,7 @@ const EnvironmentSchema = z.object({
   SCHEDULE_WORKER_POLL_INTERVAL: z.coerce.number().int().default(1000),
   SCHEDULE_WORKER_IMMEDIATE_POLL_INTERVAL: z.coerce.number().int().default(50),
   SCHEDULE_WORKER_CONCURRENCY_LIMIT: z.coerce.number().int().default(50),
-  SCHEDULE_WORKER_SHUTDOWN_TIMEOUT_MS: z.coerce.number().int().default(60_000),
+  SCHEDULE_WORKER_SHUTDOWN_TIMEOUT_MS: z.coerce.number().int().default(30_000),
   SCHEDULE_WORKER_DISTRIBUTION_WINDOW_SECONDS: z.coerce.number().int().default(30),
 
   SCHEDULE_WORKER_REDIS_HOST: z