Overview of changes in 1.46.2
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- Fix pango_win32_font_map_load_font with falback families
- Fix an assertion in pango_language_get_scripts
- Fix a crash in get_items_log_attrs
- Fix attribute iterators with overlapping attributes
- Fix rendering of Emoji keycap sequences
- ci: Run the testsuite under asan and fix all reported issues
- build: Make libthai, cairo, xft, fontconfig, freetype
  dependencies meson features