Update duckdb index files

.gitattributes

@@ -58,3 +58,4 @@ data_preprocessed.en.txt filter=lfs diff=lfs merge=lfs -text
 data_preprocessed.sparql.txt filter=lfs diff=lfs merge=lfs -text
 mshahzaib777--text-sparql/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 mshahzaib777--text-sparql/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+mshahzaib777--text-sparql/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

mshahzaib777--text-sparql/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8a9aa116d827f9c59203a4824fa71076d11d4661777ad4e82b1587e9159d60bf
+size 27275264