Bug 1866883 - Avoid attempting to apply DirectWrite FONT_SIMULATIONS_BOLD to COLR fonts. a=RyanVM

The DirectWrite "bold simulation" has poor results with some fonts;
we already disable it by default for webfonts, to avoid rendering
issues.

As it also works poorly with some of the component layers in Segoe UI
Emoji, let's disable it for COLR fonts as well.