Update duckdb index files

.gitattributes

@@ -70,3 +70,4 @@ 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_other/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 sha256:89b00f22bc2f51c4128945e02f03bb50a5c47ba79ec572e53f11e44b884893fd
+size 55586816