[5.x] Specify WorkloadRepository@get() return type (#1542)

* Update WorkloadRepository.php

* Update WorkloadRepository.php

* Update RedisWorkloadRepository.php

Author: cosmastech

src/Contracts/WorkloadRepository.php

@@ -7,7 +7,7 @@ interface WorkloadRepository
     /**
      * Get the current workload of each queue.
      *
-     * @return array
+     * @return array<int, array{"name": string, "length": int, "wait": int, "processes": int, "split_queues": null|array<int, array{"name": string, "wait": int, "length": int}>}>
      */
     public function get();
 }

src/Repositories/RedisWorkloadRepository.php

@@ -60,7 +60,7 @@ public function __construct(QueueFactory $queue, WaitTimeCalculator $waitTime,
     /**
      * Get the current workload of each queue.
      *
-     * @return array
+     * @return array<int, array{"name": string, "length": int, "wait": int, "processes": int, "split_queues": null|array<int, array{"name": string, "wait": int, "length": int}>}>
      */
     public function get()
     {