Ruby sass compiler warnings for unquoted color names

[gladwearefriends]

Describe the bug
While upgrading to latest primer in github/resources (jekyll site) i got a lot of warnings in my terminal all along the lines of...

WARNING on line 40, column 12 of /Users/gladwearefriends/github/resources/_sass/@primer/css/utilities/colors.scss:
You probably don't mean to use the color value `pink' in interpolation here.
It may end up represented as #ffc0cb, which will likely produce invalid CSS.
Always quote color names when using them as strings (for example, "pink").
If you really want to use the color value here, use `"" + $hue'.

WARNING on line 40, column 12 of /Users/gladwearefriends/github/resources/_sass/@primer/css/utilities/colors.scss:
You probably don't mean to use the color value `purple' in interpolation here.
It may end up represented as #800080, which will likely produce invalid CSS.
Always quote color names when using them as strings (for example, "purple").
If you really want to use the color value here, use `"" + $hue'.

@shawnbot offered a fix to put the color names into quotes here: https://github.com/primer/css/blob/master/src/support/variables/color-system.scss#L235-L242

and that solved my issues! ✨

for reference: twbs/bootstrap-rubygem#130 (comment)

@primer/design-systems

[shawnbot]

This was fixed in #794. 🎉