Update duckdb index files

.gitattributes

@@ -230,3 +230,4 @@ 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_legislation/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 bg_all/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+cs_all/partial-validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

cs_all/partial-validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d628f439effac3f5a174ef8f3a500bbaa9d41a3a832ae22814102f25cb91d841
+size 185610240