Add CSSTest-*.ttf test fonts to third_party test_fonts

Enables improved testing of system font matching, see WPT
tests: css/css-fonts/font-family-name-*

Fonts from https://www.w3.org/Style/CSS/Test/Fonts/CSSTest/

Removed local() sources from font-weight-matching.html to
address discrepancy between cssTest fonts published in
[1] and WPT, compare [2].

[1] https://www.w3.org/Style/CSS/Test/Fonts/CSSTest/
[2] https://github.com/web-platform-tests/wpt/pull/9373

Fixed: 414312056
Change-Id: If13bc9e63900f583549f52decf4244bee3e695df
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6512831
Reviewed-by: Thomas Anderson <thomasanderson@chromium.org>
Commit-Queue: Dominik Röttsches <drott@chromium.org>
Auto-Submit: Dominik Röttsches <drott@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1459911}
NOKEYCHECK=True
GitOrigin-RevId: 0e2120266980b2e448859cfe42d15cfcd2adc07c