fix: 🐛 fix a label (van gogh, not gauguin)

Note that it's called "Self-Portrait Dedicated to Paul Gauguin".
https://harvardartmuseums.org/collections/object/299843

data/train-00000-of-00001.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:6e902d72ff86d4abcc6bb566b925bdcf6c19fa8ff0e76c4e5003e65e8f15d3c9
-size 77271969
+oid sha256:723b4c01724934d5932bcd1bc2640b670cb7a7b80bfc76762cd3ac9a55913afb
+size 77412337