Update Athiti

**Font Project Git Repo URL:**

A PR has been opened by a user, but there are a lot of fails that should be easily fixed: https://github.com/google/fonts/pull/9044

> This PR is an attempt at correcting issue https://github.com/google/fonts/issues/9043 using FontForge. As I have no experience with FontForge, I will describe my process: I simply opened the TTF files for each variant, measured the height of the U+201A shape, and used the Transform dialog to move the U+201E shape to the same height. I then executed File → Generate Fonts to produce new versions of the TTF files. For every variant, there were two warnings. The first informed me about a convention that TrueType fonts should have an em-size that is a power of 2, while these fonts have 1000. The second was “Missing points at Extrema” for various glyphs (quotedbl, quotesingle, parenleft, parenright, braceleft, braceright, uni0E04, uni0E05, uni0E28, uni0E56, minute, second – so seemingly not the glyph that I was changing). I chose to ignore these.

**ISSUE**
https://github.com/google/fonts/issues/9043