Update dependency ufo2ft to v3.8.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
ufo2ft	==3.7.3 → ==3.8.0

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Release Notes

googlefonts/ufo2ft (ufo2ft)

v3.8.0

Compare Source

• [instantiator] Fixed assertion error when instancing fonts with multiple sparse/virtual masters but only a single default info master (#​981, #​983).
• [propagateAnchors] Ported the anchor propagation algorithm from glyphsLib and fontc, matching the original one from Glyphs.app (#​985).
  Added support for public.openTypeCategories in the designspace lib (now prioritized over per-UFO lib.plist).
  Allow caller (e.g. fontmake) to pass optional preliminaryOpenTypeCategories with a set of mark and ligature glyphs to be used by the new propagateAnchors when explicit public.openTypeCategories are not present in the source (#​802, #​985).

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