Update duckdb index files

.gitattributes

@@ -54,3 +54,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 Numind--C4_sentiment-analysis/balanced/index.duckdb filter=lfs diff=lfs merge=lfs -text
+Numind--C4_sentiment-analysis/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

Numind--C4_sentiment-analysis/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:dc224f29ed4efb235ae5b3a78dd9c00caf71774c2370f36e6513c23fcf53d3fc
+size 78131200