Update duckdb index files

.gitattributes

@@ -189,3 +189,4 @@ en_contracts/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 en_other/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 et_other/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 all_all/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+all_caselaw/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

all_caselaw/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0ccaa56440f1bed68a372216af539c60ac74edb2615341798e384e99b2466383
+size 1147940864