Update duckdb index files

.gitattributes

@@ -1,3 +1,4 @@
 marksverdhei--reddit-syac-urls/csv-train.parquet filter=lfs diff=lfs merge=lfs -text
 marksverdhei--reddit-syac-urls/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 marksverdhei--reddit-syac-urls/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+marksverdhei--reddit-syac-urls/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

marksverdhei--reddit-syac-urls/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2fdb0801ecfecc133bd7fe334155899b5abcfa36b187731aadf00fcdd4fcd597
+size 1060864