Update duckdb index files

.gitattributes

@@ -68,3 +68,4 @@ cs_all/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs_contracts/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 en_legislation/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 el_other/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+es_caselaw/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

es_caselaw/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:dfd959866143650d6b3a628190051769e575462798655fdbb18f6551966f1b1b
+size 35139584