Log Message:
harfbuzz*: update to 8.2.1

Overview of changes leading to 8.2.1
Monday, September 18, 2023
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- Unicode 15.1 support.

Overview of changes leading to 8.2.0
Friday, September 8, 2023
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- Various build and fuzzing fixes
- Improvements to COLRv1 painting.

- New API:
+hb_paint_color_glyph_func_t
+hb_paint_funcs_set_color_glyph_func
+hb_paint_color_glyph