[12.x] Http::batch - fix issue that non valid URL not triggering catch hook

[WendellAdriel]

Overview

I was talking with @christophrumpel on X and he showed me that calling a non-valid URL was not triggering the catch hook of the Http::batch

Http::batch(fn (Batch $batch) => [
    $batch->get('https://laravel.com'),
    $batch->get('https://laravell.comn'),
])->catch(function (Batch $batch, int|string $key, Response|RequestException $response) {
    dump('error');
})->send();

Fix

I saw that instead of a \Illuminate\Http\Client\RequestException in these cases it throws a \Illuminate\Http\Client\ConnectionException, so I added this check, and also updated the catch hook to handle this

Http::batch(fn (Batch $batch) => [
    $batch->get('https://laravel.com'),
    $batch->get('https://laravell.comn'),
])->catch(function (Batch $batch, int|string $key, Response|RequestException|ConnectionException $response) {
    dump('error');
})->send();