Update duckdb index files

.gitattributes

@@ -373,3 +373,4 @@ default/cv.test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/de.validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/dv.validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/el.test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/el.validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/el.validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bde560261b2958c490e3ecb7ff427c57a2aec8cdd76b49b9f59e742630179347
+size 1847296