Update duckdb index files

.gitattributes

@@ -373,3 +373,4 @@ fi_all/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 fr_caselaw/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 fi_other/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 da_legislation/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+fr_contracts/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

fr_contracts/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7430ed436abb8c40addf8f9b027980b370758171c523f1702a4bee6d7ddd74bf
+size 27275264