Update duckdb index files

.gitattributes

@@ -53,3 +53,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 pclue/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+pclue/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

pclue/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:21d2515670f9827c23e6a46e954cf6b3cc63fbb64f5b976c82a185b919822924
+size 3420160