Set PageSize to 1000 when fetch images from GAR (#12993)

Author: shohei-ihaya

mmv1/third_party/terraform/services/artifactregistry/data_source_artifact_registry_docker_image.go

@@ -132,7 +132,8 @@ func DataSourceArtifactRegistryDockerImageRead(d *schema.ResourceData, meta inte
 			return fmt.Errorf("Error setting api endpoint")
 		}
 
-		urlRequest, err = transport_tpg.AddQueryParams(urlRequest, map[string]string{"orderBy": "update_time desc"})
+		// to reduce the number of pages we need to fetch, we set the pageSize to 1000(max)
+		urlRequest, err = transport_tpg.AddQueryParams(urlRequest, map[string]string{"orderBy": "update_time desc", "pageSize": "1000"})
 		if err != nil {
 			return err
 		}