Update duckdb index files

.gitattributes

@@ -62,3 +62,4 @@ sequencer-defects4j-in/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 sequencer-defects4j-out/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 sequencer-vul4j-in/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 sequencer-corpus-out/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+sequencer-vul4j-out/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

sequencer-vul4j-out/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:517fdbcf764ee9fdb9227433df5b42de792fc825bf32fde71cd84847a3d355ee
+size 1060864