Update duckdb index files

.gitattributes

@@ -64,3 +64,4 @@ french/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 french/train/partial-index.duckdb filter=lfs diff=lfs merge=lfs -text
 german/dev/index.duckdb filter=lfs diff=lfs merge=lfs -text
 german/train/partial-index.duckdb filter=lfs diff=lfs merge=lfs -text
+italian/dev/index.duckdb filter=lfs diff=lfs merge=lfs -text

italian/dev/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:47d0eb79a2bb39af478dd71a3d16772634b1a44e21610545d2f073bd4c720e9c
+size 704917504