Update duckdb index files

.gitattributes

@@ -75,3 +75,4 @@ de_other/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 da_caselaw/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs_contracts/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 el_contracts/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+en_wikipedia/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

en_wikipedia/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:25c0afa0c8747d8217fa7ce943cf4122db8ec549ddcd1130b5ad082fcdc0c3d9
+size 7352320