[THANKS] Add Ivan Kuckir <https://photopea.com/>

https://github.com/harfbuzz/harfbuzz/issues/1633#issuecomment-485764140
diff --git a/THANKS b/THANKS
index 940cfde..88cb7e9 100644
--- a/THANKS
+++ b/THANKS
@@ -1,6 +1,6 @@
 Bradley Grainger
-Khaled Hosny
 Kenichi Ishibashi
+Ivan Kuckir <https://photopea.com/>
 Ryan Lortie
 Jeff Muizelaar
 suzuki toshiya