Update duckdb index files

.gitattributes

@@ -49,3 +49,4 @@ 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
+pbwt--small-thai/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

pbwt--small-thai/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0e861ffe2e7240c8218ba705f250b840041c74af625faa311ea3eb00db018525
+size 3981455360