Update duckdb index files

.gitattributes

@@ -287,3 +287,4 @@ all_other/partial-validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 bg_all/partial-validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 all_wikipedia/partial-validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs_all/partial-validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+all_contracts/partial-validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

all_contracts/partial-validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6afd15d21612ce50fe1437463687adf92769c07ef4844b3340314a034c16abe3
+size 690499584