[9.x] Add failing tests $request->query() no longer can retrieve array query string

[crynobone]

Exact same code from #40598 for Laravel 9

1) Illuminate\Tests\Http\HttpRequestTest::testQueryMethod
Symfony\Component\HttpFoundation\Exception\BadRequestException: Input value "user" contains a non-scalar value.

/home/runner/work/framework/framework/vendor/symfony/http-foundation/InputBag.php:37
/home/runner/work/framework/framework/src/Illuminate/Http/Concerns/InteractsWithInput.php:510
/home/runner/work/framework/framework/src/Illuminate/Http/Concerns/InteractsWithInput.php:383
/home/runner/work/framework/framework/tests/Http/HttpRequestTest.php:681

Signed-off-by: Mior Muhammad Zaki crynobone@gmail.com

[X-Coder264]

This is due to the following deprecation https://github.com/symfony/symfony/blob/v5.4.2/src/Symfony/Component/HttpFoundation/InputBag.php#L39 (which was added via symfony/symfony#34363)

In order for array parameters to work with Symfony 6 \Illuminate\Http\Concerns\InteractsWithInput::retrieveItem will have to be adjusted from

        if (is_null($key)) {
            return $this->$source->all();
        }

        return $this->$source->get($key, $default);

to

        if (is_null($key)) {
            return $this->$source->all();
        }

        return $this->$source->all()[$key] ?? $default;

[crynobone]

@X-Coder264 feel free to create a PR. Mine is more just to verify there is a bug and the other test PR to 8.x will be merged to 9.x eventually.

[X-Coder264]

@crynobone Done -> #40609