fix: resolve array_last function issues after upstream merge

- Replace array_last() with Arr::last() in Container.php
- Replace array_last() with end() in Arr.php
- Add missing Arr import to Container.php
- Fixes fatal errors in testbench processes

Author: AmirHossein Fallah

src/Illuminate/Collections/Arr.php

@@ -287,7 +287,7 @@ public static function first($array, ?callable $callback = null, $default = null
     public static function last($array, ?callable $callback = null, $default = null)
     {
         if (is_null($callback)) {
-            return empty($array) ? value($default) : array_last($array);
+            return empty($array) ? value($default) : end($array);
         }
 
         return static::first(array_reverse($array, true), $callback, $default);

src/Illuminate/Container/Container.php

@@ -13,6 +13,7 @@
 use Illuminate\Contracts\Container\Container as ContainerContract;
 use Illuminate\Contracts\Container\ContextualAttribute;
 use Illuminate\Contracts\Container\SelfBuilding;
+use Illuminate\Support\Arr;
 use Illuminate\Support\Collection;
 use LogicException;
 use ReflectionAttribute;
@@ -1320,7 +1321,7 @@ protected function getParameterOverride($dependency)
      */
     protected function getLastParameterOverride()
     {
-        return count($this->with) ? array_last($this->with) : [];
+        return count($this->with) ? Arr::last($this->with) : [];
     }
 
     /**
@@ -1680,7 +1681,7 @@ protected function fireCallbackArray($object, array $callbacks)
      */
     public function currentlyResolving()
     {
-        return array_last($this->buildStack) ?: null;
+        return Arr::last($this->buildStack) ?: null;
     }
 
     /**