Fix 'Audit url open for permitted schemes. Allowing use of file:/ or custom schemes is often unexpected.' issue in amazon\main.py

[CodeFactor](https://www.codefactor.io/repository/github/unero/python_scraper/overview/master) found an issue: Audit url open for permitted schemes. Allowing use of file:/ or custom schemes is often unexpected.

It's currently on:
[amazon\main.py:140
](https://www.codefactor.io/repository/github/unero/python_scraper/source/master/amazon/main.py#L140)