[11.x] Add Skip middleware for Queue Jobs - #52645

class MyJob implements ShouldQueue
{
    use Queueable;

    public function handle(): void
    {
        // TODO
    }

    public function middleware(): array
    {
        return [
            function ($job, $next) {
                if ($someCondition) {
                    $next($job);
                }
            },
        ];
    }
}

class MyJob implements ShouldQueue
{
    use Queueable;

    public function handle(): void
    {
        // TODO
    }

    public function middleware(): array
    {
        return [
            Skip::when($someCondition),
        ];
    }
}

class MyJob implements ShouldQueue
{
    use Queueable;

    public function handle(): void
    {
        // TODO
    }

    public function middleware(): array
    {
        return [
            Skip::when($someCondition),

            Skip::unless($someCondition),

            Skip::when(function(): bool {
                if ($someCondition) {
                    return true;
                }
                return false;
            }),
        ];
    }
}