Update duckdb index files

transcribe_sk/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:271b437536d7805f53ee810484fc10f189af1ad535e67c097e79940d08194331
-size 277360640
+oid sha256:0769eae8e78a6016688c90194b9657e3655aea61b53dcf53cde6be9289f31bdb
+size 277098496