Fixed server crash when applying item cooldown (pmmp#6491)

This commit fixes server crash when applying a cooldown to any item which count is equals to 1.

closes pmmp#6490 
closes pmmp#6488

src/player/Player.php

@@ -1625,7 +1625,7 @@ public function useHeldItem() : bool{
 			return false;
 		}
 
-		$this->resetItemCooldown($item);
+		$this->resetItemCooldown($oldItem);
 		$this->returnItemsFromAction($oldItem, $item, $returnedItems);
 
 		$this->setUsingItem($item instanceof Releasable && $item->canStartUsingItem($this));
@@ -1654,7 +1654,7 @@ public function consumeHeldItem() : bool{
 			}
 
 			$this->setUsingItem(false);
-			$this->resetItemCooldown($slot);
+			$this->resetItemCooldown($oldItem);
 
 			$slot->pop();
 			$this->returnItemsFromAction($oldItem, $slot, [$slot->getResidue()]);
@@ -1682,7 +1682,7 @@ public function releaseHeldItem() : bool{
 			$returnedItems = [];
 			$result = $item->onReleaseUsing($this, $returnedItems);
 			if($result === ItemUseResult::SUCCESS){
-				$this->resetItemCooldown($item);
+				$this->resetItemCooldown($oldItem);
 				$this->returnItemsFromAction($oldItem, $item, $returnedItems);
 				return true;
 			}