Update duckdb index files

.gitattributes

@@ -53,3 +53,4 @@ 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
+seanghay--google-khmer-lexicon/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

seanghay--google-khmer-lexicon/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3de57f0f32d4d1aa38377f8103984f98aa7563de74ac9a9bd1e00ebdead4cf5c
+size 2633728