Add SECURITY.md - Security Policy

[AhlamBCoding]

Hello, I’d like to propose the addition of a SECURITY.md file to this repository. This would make it easier for users/developers to report security vulnerabilities responsibly improving the project’s security posture and potentially increase the project’s OpenSSF Scorecard ratinghttps://scorecard.dev/. Here’s a guide that could be helpful during implementation: Adding Security Policy to Your Repository

[MichaReiser]

I suggest we just link to Ruff's advisory https://github.com/astral-sh/ruff/issues/16206