Update duckdb index files

.gitattributes

@@ -61,3 +61,4 @@ arithmetic_3ds/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 arithmetic_4da/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 arithmetic_4ds/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 arithmetic_5da/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+arithmetic_5ds/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

arithmetic_5ds/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:01c59fd34262eebd8e4a777688fb2ca6e7c61fcc5d83b76c1b3487812b51ffa4
+size 1323008