Update duckdb index files

.gitattributes

@@ -89,3 +89,4 @@ bg_wikipedia/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 de_other/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 el_other/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 en_caselaw/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+es_contracts/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

es_contracts/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:eef9e309cdf8b52c3ef94eca740e8a846bcdf117c12b1171b0cef0bf04ccd369
+size 34091008