[FEATURE REQUEST] Automatically check if icons used as font have more than one path

### I have searched through the issues and didn't find my problem.

- [X] Confirm

### Problem

Icons that are used as fonts should not have more than one path element. Currently we have to manually check this, but it should be an automated process

### Possible Solution

Add a check to `check-bot` to make sure that all icons inside the `fonts` object in `devicon.json` have only one path. If more than one path element is found, the workflow should fail woth a message letting the user know how to fix it.

### Additional information

_No response_

Start by locating the existing check-bot validation entry point and inspecting the fonts object in devicon.json. Confirm how the workflow reports failed checks. Done means icons with more than one path cause the workflow to fail with a message explaining the fix, while valid icons continue to pass.

Written by the indexing model from the issue text.