Update duckdb index files

.gitattributes

@@ -52,3 +52,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpg filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
+pythainlp--thaigov-v2-corpus-22032023/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

pythainlp--thaigov-v2-corpus-22032023/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:925de11e9e35e693e08405478629b48db668ab2a5a7c3cd966dff9f63d4a31f4
+size 88092672