[Epic] Add security scanner integration

Original Pulp Redmine Issue: https://pulp.plan.io/issues/6872

Goal

Users storing content in pulp_python should derive benefit from security scanning of Python packages that are out there.

Existing Tools

The idea is to integrate a tool not make a new one. Here are some options I've read about from this article.

Scanning Python Code Itself

• Bandit
• pysa

Scanning Python Dependencies

• safety <-- freemium model with limited updates when not paid for

Start by reviewing the goal and the listed scanning options in this issue, then read the linked article and the Bandit, Pysa, and Safety documentation. Determine which tool and integration scope fit pulp_python; done means the selected scanner is integrated so users storing Python content can benefit from security scanning.