Update duckdb index files

.gitattributes

@@ -53,3 +53,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 pythainlp--han-corf-dataset-v1.0/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+pythainlp--han-corf-dataset-v1.0/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

pythainlp--han-corf-dataset-v1.0/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:38cd5d88239ace27aea14659b24f534e8bd96544ef86d1ff3eecf08dbbabec2e
+size 3158016