Update duckdb index files

.gitattributes

@@ -52,3 +52,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpg filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
+nlpservicebots--learning/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

nlpservicebots--learning/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e67d61eb0e45e48f430b0c5e11a4a0fa47628c18cd74fe06f9e54d8cead5fa0b
+size 1060864