Update Scheherazade New

**Font Project Git Repo URL:**

https://github.com/silnrsi/font-scheherazade/releases/tag/v4.500

**Current version:**

v4.400

**New available version:**

v4.500

**Super short description of the upgrade:**

The main improvement is the addition of 20C1 SAUDI RIYAL SIGN per request of users. There were also minor kerning fixes.

**Bugs reported in this repo which this upgrade would fix:**

n/a
