**Apache Airflow version**: latest (main branch)

**What happened**:

There is a little typo in this line of code: https://github.com/apache/airflow/blob/6172b0e6c796d1d757ac1806b671ee168c031b1e/airflow/contrib/operators/gcs_to_bq.py#L40

**What you expected to happen**:

It should be *gcs_to_bigquery* instead of *gcs_to_bq*:

```
Please use `airflow.providers.google.cloud.transfers.gcs_to_bigquery.GCSToBigQueryOperator`.""",
```

tests/providers/google/cloud/transfers/test_gcs_to_bigquery.py
operator.execute(None)
        
        bq_hook.return_value.get_conn.return_value.cursor.return_value.create_external_table. \
            assert_called_once_with(
                external_project_dataset_table=mock.ANY,
                schema_fields=mock.ANY,
                source_uris=mock.ANY,
                source_format=mock.ANY,
                compression=mock.ANY,
                skip_leading_rows=mock.ANY,
                field_delimiter=mock.ANY,
                max_bad_records=mock.ANY,
                quote_character=mock.ANY,
                ignore_unknown_values=mock.ANY,
                allow_quoted_newlines=mock.ANY,
                allow_jagged_rows=mock.ANY,
                encoding=mock.ANY,
                src_fmt_configs=mock.ANY,
                encryption_configuration=mock.ANY,
                labels=mock.ANY,
                description=DESCRIPTION,
            )
        
    @mock.patch('airflow.providers.google.cloud.transfers.gcs_to_bigquery.BigQueryHook')
    def test_source_objects_as_list(self, bq_hook):
        operator = GCSToBigQueryOperator(
            task_id=TASK_ID,
            bucket=TEST_BUCKET,
            source_objects=TEST_SOURCE_OBJECTS,
            destination_project_dataset_table=TEST_EXPLICIT_DEST,