Update duckdb index files

.gitattributes

@@ -18,3 +18,4 @@ flax-community--conceptual-12m-multilingual-marian/csv-train-00002-of-00003.parq
 flax-community--conceptual-12m-multilingual-marian/csv-train-00001-of-00003.parquet filter=lfs diff=lfs merge=lfs -text
 flax-community--conceptual-12m-multilingual-marian/csv-train-00000-of-00003.parquet filter=lfs diff=lfs merge=lfs -text
 flax-community--conceptual-12m-multilingual-marian/csv-validation.parquet filter=lfs diff=lfs merge=lfs -text
+flax-community--conceptual-12m-multilingual-marian/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

flax-community--conceptual-12m-multilingual-marian/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0db3f2bcd7d78397b3e032715a4aa26d7a484767c13812c3e28fea9d4d5f42fc
+size 23605248