[site-reviews] Use absolute rating value in glsr_get_reviews()

/**
 * Changes the rating parameter of the glsr_get_reviews function to use an absolute rating value
 *
 * @param array $and
 * @param string $handle
 * @param \GeminiLabs\SiteReviews\Database\Query $query
 * @return array
 * @version Site Reviews v5
 */
function glsr_use_absolute_rating ($and, $handle, $query) {
    $filteredHandles = ['query-review-ids', 'query-total-reviews'];
    if (in_array($handle, $filteredHandles) && !empty($and['rating'])) {
        $and['rating'] = sprintf('AND r.rating = %d', $query->args['rating'] + 1);
    }
    return $and;
}

// add the filter before running glsr_get_reviews()
add_filter('site-reviews/query/sql/and', 'glsr_use_absolute_rating', 11, 3);

$reviews = glsr_get_reviews(['rating' => 2]);

// remove the filter after running glsr_get_reviews()
remove_filter('site-reviews/query/sql/and', 'glsr_use_absolute_rating', 11);