Update duckdb index files

.gitattributes

@@ -46,3 +46,4 @@ humaneval-r/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 humaneval-r-keep/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 humaneval-r-remove/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 humaneval-r-transform/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+humaneval-rb/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

humaneval-rb/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b201d585f62d5c24d7f4a382f931a9e3500bdaaf511c6fccd5379745346837f2
+size 1060864