milvus client insert to return ids as well (#1944)

Signed-off-by: Buqian Zheng <[email protected]>

pymilvus/milvus_client/milvus_client.py

@@ -216,7 +216,7 @@ def insert(
             )
         except Exception as ex:
             raise ex from ex
-        return {"insert_count": res.insert_count}
+        return {"insert_count": res.insert_count, "ids": res.primary_keys}
 
     def upsert(
         self,