Update duckdb index files

Kamaljp--articles_samples/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:da17984143a0acca16b2fae0b2302b01485a146e425ef83427c48f6796305917
-size 687353856
+oid sha256:ee4a5f8d30541c9adf160de2cb5e353048f4bd569fcad1762333bb87bb567c14
+size 690237440