Update duckdb index files

.gitattributes

@@ -1,2 +1,3 @@
 SDbiaseval--dataset-identities-v-1.4/parquet-train.parquet filter=lfs diff=lfs merge=lfs -text
 SDbiaseval--identities-sd-1.4/parquet-train.parquet filter=lfs diff=lfs merge=lfs -text
+SDbiaseval--identities-sd-1.4/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

SDbiaseval--identities-sd-1.4/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8fb68136a8a04c6e44bade8d3b1b242010d7b62b5d52caf0b6b40f77524c13a3
+size 29110272