Log Message:
(fonts/public-sans) Updated to 1.008

(From FONTLOG.txt)
January 8 2020 (USWDS) Public Sans v1.008
- https://github.com/uswds/public-sans/releases/tag/v1.008

General
- Improves overall texture and spacing
- Added NPM scripts for building and testing

Kerning and spacing
- Tightened kerning around `r`, `t`, `f`, and `l`
- Loosened spacing around `o`
- Improved spacing around `n`
- Balanced `o|v|o` kerning
- Widen `space` glyph
- Balance sidebearings in capitals

Glyphs
- Added `division slash`