Update duckdb index files

.gitattributes

@@ -250,3 +250,4 @@ all_contracts/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 bg_caselaw/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 bg_wikipedia/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 bg_legislation/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+all_legislation/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

all_legislation/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:33873b8a69bade22b10cc911dbaacd1c514ddf62d46b3b52dc4352df0f4a6f3c
+size 1267478528