Update duckdb index files

.gitattributes

@@ -83,3 +83,4 @@ cs_en/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs_it/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ar_ja/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ar_hi/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+cs_it/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

cs_it/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:07a46f9d143b8179cc7e12325111ad98c5a0c5dd335c31c122e2beab16ec4f54
+size 94384128