Update duckdb index files

.gitattributes

@@ -285,3 +285,4 @@ pt_other/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ro_all/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 sv_legislation/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 all_caselaw/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+all_contracts/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text

all_contracts/partial-train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:074cdeff3ec5250e27a6f2cec137a941ca70049db7fa9d6e62a0c7479d9d9d17
+size 8147447808