最大执行时间为120秒超过了laravel 5.2

I want to convert some GIFs to mp4. I tried to use CloudConvert, but when I installed the packages and configure the curl.cainfo I get that message that says

FatalErrorException in CurlFactory.php line 271:
Maximum execution time of 120 seconds exceeded

This is the code of converting

The video encoding process may need several minutes conversion time. To avoid such CURL timeout issues you should use an asynchronous implementation:

# Script: sendConversion
CloudConvert::file('/a/path/to/file.gif')
            ->callback('http://myserver.com/save_file.php')
            ->convert('mp4');

And in "save_file.php":

# Script: saveFile
CloudConvert::useProcess($_REQUEST['url'])
            ->save('/path/converted.mp4');