Update duckdb index files

.gitattributes

@@ -2,3 +2,4 @@ marccgrau--sbbdata_snr_none/parquet-train.parquet filter=lfs diff=lfs merge=lfs
 marccgrau--sbbdata_snr_none/parquet-test.parquet filter=lfs diff=lfs merge=lfs -text
 marccgrau--sbbdata_snr_none/parquet-val.parquet filter=lfs diff=lfs merge=lfs -text
 marccgrau--sbbdata_snr_none/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+marccgrau--sbbdata_snr_none/val/index.duckdb filter=lfs diff=lfs merge=lfs -text

marccgrau--sbbdata_snr_none/val/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:124ca630163b289f180ac9814e21d53ee3f01a2107037a333663fa4c65b9daf9
+size 38547456