Update duckdb index files

.gitattributes

@@ -55,3 +55,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 microsoft--LCC_java/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 microsoft--LCC_java/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+microsoft--LCC_java/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

microsoft--LCC_java/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f199d30b078b83e2f84e890dfaf5edf93999175b18bb0a935f79f17b6ff26ec1
+size 1412706304