REST API endpoint for storing a URL Metric should return a 423 Locked status code instead of 403 Forbidden

[westonruter]

See todo:

performance/plugins/optimization-detective/storage/rest-api.php

Lines 95 to 105 in 1f8265d

	'permission_callback' => static function () {
	// Needs to be available to unauthenticated visitors.
	if ( OD_Storage_Lock::is_locked() ) {
	return new WP_Error(
	'url_metric_storage_locked',
	__( 'URL Metric storage is presently locked for the current IP.', 'optimization-detective' ),
	array( 'status' => 403 ) // TODO: Consider 423 Locked status code.
	);
	}
	return true;
	},

[hbhalodia]

Hi @westonruter, I would like to work on this issue and would update the status code for storing URL metric.

Thank You,