fix add info on submission

src/submission/submit.py

@@ -86,11 +86,14 @@ def add_new_solutions(
     submission_ts = time.time_ns()
 
     def add_info(row):
-        row["system_name"] = system_name
-        row["organization"] = org
-        row["system_type"] = sys_type
-        row["submission_id"] = submission_id
-        row["submission_ts"] = submission_ts
+        return {
+            **row,
+            "system_name": system_name,
+            "organization": org,
+            "system_type": sys_type,
+            "submission_id": submission_id,
+            "submission_ts": submission_ts,
+        }
 
     ds = Dataset.from_pandas(submission_df).map(add_info)