Update duckdb index files

.gitattributes

@@ -62,3 +62,4 @@ bg_caselaw/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 bg_legislation/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 all_other/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 de_legislation/validation/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 sha256:7fcc874e90c33492648a25a748c78e45444f27edc12039c2b1429818e80a5294
+size 149958656