Update duckdb index files

.gitattributes

@@ -103,3 +103,4 @@ fr_contracts/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 fi_all/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs_other/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 fi_contracts/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+et_caselaw/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

et_caselaw/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:00eaabeb1466ce54ec96ec164c144a0166267bdc3f63f83ca777cc32e9bdbaca
+size 5779456