[12.x] Correct Response namespace in Batch

[simon-tma]

Illuminate\Http\Client\Batch works with Illuminate\Http\Client\Response instances. These are not subclasses of Illuminate\Http\Response, so following the types in the comments would result in code that fails when run.

[rodrigopedra]

Can we also take the opportunity to remove the @return void from the constructor's docblock?

framework/src/Illuminate/Http/Client/Batch.php

Lines 117 to 127 in be5d298

	/**
	* Create a new request batch instance.
	*
	* @return void
	*/
	public function __construct(?Factory $factory = null)
	{
	$this->factory = $factory ?: new Factory;
	$this->handler = Utils::chooseHandler();
	$this->createdAt = new CarbonImmutable;
	}

Those were removed framework-wise here: #55076