Update duckdb index files

.gitattributes

@@ -77,3 +77,4 @@ vulrepair-corpus-out/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 selfapr-vul4j-in/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 selfapr-vul4j-out/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 sequencer-quixbugs-in/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+sequencer-quixbugs-out/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

sequencer-quixbugs-out/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b53d4c77d205150566b7b502ea34b995dc2bdbea5fc514190933d6f593683681
+size 1060864