Repositories OpenGraph Preview problem with Persian charchters

Hi, I want to report a bug and I’m not sure if this is the place to do,
But the problem is with the OG meta tag previews that are generated
It’s been 2-3 months since github has added a new feature to generate an image preview for the repository urls, it generates an image as preview with description of the repo and the profile image of the author and etc

This works fine in English repositories which have english text as description for repo,
But there is a bug with Persian/Arabic characters, they are blank square like the font used in this process does not include persian unicode glyphs

An example repository is this one

This is the preview image directly given from github :

Also the attached version of the same image (if it expires or anything) :