[emoji] Fix emoji table generation Previously, the last of each range having Extended_Pictograph property was not processed as so. Ouch! Test: $ echo x > null; hb-shape null -u U+1f43b,U+200d,U+2744,U+fe0f Before: [gid0=0+1000|gid0=2+1000] After: [gid0=0+1000|gid0=0+1000] Caught by https://github.com/harfbuzz/harfbuzz/issues/3017