Update duckdb index files

.gitattributes

@@ -106,3 +106,4 @@ ar_de/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs/sampled_test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 es_ja/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ar_de/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+fr_cs/sampled_validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

fr_cs/sampled_validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6916e8d9cbe5da804ab80d65ecef0586a55aac5a915c659f211fcd860188831c
+size 38809600