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_python/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 microsoft--LCC_python/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+microsoft--LCC_python/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

microsoft--LCC_python/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1525067115f4f015c0cd183781db2ed3204b4e51db93a789d710971850ce7422
+size 1486368768