CI/CD Tools - Linting

Linting, code patterns, security anti-patterns, SAST all run in similar circles - I believe there is some things you could implement in your linting practices that could have an effect on code security.

What that is exactly is still to be determined, but I'd love to start collecting thoughts on it and if should be included in the training module for CI/CD Tooling.

For the Elixir specific examples, it would most likely be referencing [Credo](https://github.com/rrrene/credo).

Relevant Resources:
- https://owasp.org/www-project-devsecops-guideline/latest/01b-Linting-Code#:~:text=What%20Is%20Linting%3F,a%20basic%20static%20code%20analyzer.
- https://medium.com/greenwolf-security/linting-for-bugs-vulnerabilities-49bc75a61c6