docs: fix typo in BigQuery upgrading guide

Author: GeObts

packages/google-cloud-bigquery/UPGRADING.md

@@ -161,7 +161,7 @@ The types of several `Model` properties have been changed.
 - `Model.feature_columns` now returns a sequence of `google.cloud.bigquery.standard_sql.StandardSqlField`.
 - `Model.label_columns` now returns a sequence of `google.cloud.bigquery.standard_sql.StandardSqlField`.
 - `Model.model_type` now returns a string.
-- `Model.training_runs` now returns a sequence of dictionaries, as recieved from the [BigQuery REST API](https://cloud.google.com/bigquery/docs/reference/rest/v2/models#Model.FIELDS.training_runs).
+- `Model.training_runs` now returns a sequence of dictionaries, as received from the [BigQuery REST API](https://cloud.google.com/bigquery/docs/reference/rest/v2/models#Model.FIELDS.training_runs).
 
 <a name="legacy-protobuf-types"></a>
 ## Legacy Protocol Buffers Types