Update duckdb index files

.gitattributes

@@ -103,3 +103,4 @@ default/writer/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/real_estate_broker/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/truck_driver/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/interior_designer/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/purchasing_agent/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/purchasing_agent/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d2bfd80183c317f4db8f6be6d6d32a0a6e51c2671f085ed0f4cb477e2a1e6772
+size 6303744