Detect Malicious Unicode in PRs

[maltfield]

This issue will track the effort to implement some mechanism to scan commits in PRs for malicious unicode (eg bidi or homoglyph characters)

For more info, see Trojan Source

• https://www.trojansource.codes/trojan-source.pdf

[maltfield]

I added a CI workflow to detect unicode characters to PRs in this repo, as described here:

• https://tech.michaelaltfield.net/2021/11/22/bidi-unicode-github-defense/

New PRs should get a comment from the bot indicating if unicode characters are detected (or not).