Update duckdb index files

.gitattributes

@@ -72,3 +72,4 @@ selfapr-corpus-defects4j-Mockito-in/partial-train/index.duckdb filter=lfs diff=l
 selfapr-corpus-defects4j-Math-in/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 selfapr-corpus-defects4j-Closure-in/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 selfapr-corpus-defects4j-Chart-in/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+vulrepair-corpus-in/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

vulrepair-corpus-in/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a909034edd80e2d3af7640602b2875664486b73c2b028968a479c58555f65ddc
+size 11022336