Fix using wrong config option for resource controller (#2607)

Author: vanhtuan0409

temporal-sdk/src/main/java/io/temporal/worker/tuning/ResourceBasedController.java

@@ -43,7 +43,7 @@ public ResourceBasedController(
     this.systemInfoSupplier = systemInfoSupplier;
     this.memoryController =
         new PIDController(
-            options.getTargetCPUUsage(),
+            options.getTargetMemoryUsage(),
             options.getMemoryPGain(),
             options.getMemoryIGain(),
             options.getMemoryDGain());