Update duckdb index files

.gitattributes

@@ -2,3 +2,4 @@ arbml--ALA_LC_Romanization/parquet-test.parquet filter=lfs diff=lfs merge=lfs -t
 arbml--ALA_LC_Romanization/parquet-train.parquet filter=lfs diff=lfs merge=lfs -text
 arbml--ALA_LC_Romanization/parquet-validation.parquet filter=lfs diff=lfs merge=lfs -text
 arbml--ALA_LC_Romanization/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+arbml--ALA_LC_Romanization/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

arbml--ALA_LC_Romanization/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e83574510c21068423de9d4e1bf4806493a00bbec0c136100a1fe0abbfabcc48
+size 84946944