Update duckdb index files

.gitattributes

@@ -3,3 +3,4 @@ jonaskoenig--Questions-vs-Statements-Classification/csv-test.parquet filter=lfs
 jonaskoenig--Questions-vs-Statements-Classification/csv-validation.parquet filter=lfs diff=lfs merge=lfs -text
 jonaskoenig--Questions-vs-Statements-Classification/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 jonaskoenig--Questions-vs-Statements-Classification/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+jonaskoenig--Questions-vs-Statements-Classification/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

jonaskoenig--Questions-vs-Statements-Classification/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0d296328bbe4dd3fa2a56639ae8d25ebbd99523c701dd8d88e6faa63316f3bf5
+size 28848128