set timeout on calls to bigquery in sync task (#18259)

Author: ewdurbin

tests/unit/packaging/test_tasks.py

@@ -651,6 +651,7 @@ def find_service(name=None):
                         "blake2_256_digest": release_file.blake2_256_digest,
                     },
                 ],
+                timeout=5,
             )
             for table in release_files_table.split()
         ]

warehouse/packaging/tasks.py

@@ -346,7 +346,7 @@ def update_bigquery_release_files(task, request, dist_metadata):
                 json_rows[sch.name] = field_data
         json_rows = [json_rows]
 
-        bq.insert_rows_json(table=table_name, json_rows=json_rows)
+        bq.insert_rows_json(table=table_name, json_rows=json_rows, timeout=5)
 
 
 @tasks.task(ignore_result=True, acks_late=True)