Update duckdb index files

.gitattributes

@@ -78,3 +78,4 @@ 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
+recoder-corpus-in/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

recoder-corpus-in/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f96eebab3082f51e3805466749030b849bc1c11a7157efca58b6344100792333
+size 1473523712