chore: added comment

Author: alexander-akait

src/validate.js

@@ -117,6 +117,7 @@ function validate(schema, options, configuration) {
  * @returns {Array<SchemaUtilErrorObject>}
  */
 function validateObject(schema, options) {
+ // Not need to cache, because `ajv@8` has built-in cache
  const compiledSchema = getAjv().compile(schema);
  const valid = compiledSchema(options);