Update duckdb index files

.gitattributes

@@ -319,3 +319,4 @@ bg_other/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 bg_legislation/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 bg_other/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs_caselaw/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+all_wikipedia/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

all_wikipedia/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7599097416b6aa413777f485799d0750c2db14294a44c2d7925042dd9c121ae6
+size 213135360