Update duckdb index files

.gitattributes

@@ -54,3 +54,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 tasksource--tydi-as2-balanced/dev/index.duckdb filter=lfs diff=lfs merge=lfs -text
 tasksource--tydi-as2-balanced/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+tasksource--tydi-as2-balanced/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

tasksource--tydi-as2-balanced/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:35f520f5cd65282857c785a38f14b317c162366af2d4815819eb78de739cf508
+size 15216640