chore: Converted errors unit tests to node:test

Author: jsumners-nr

lib/config/index.js

@@ -839,7 +839,7 @@ Config.prototype.logUnknown = function logUnknown(json, key) {
 /**
  * Gets the user set host display name. If not provided, it returns the default value.
  *
- * This function is written is this strange way because of the use of caching variables.
+ * This function is written in this strange way because of the use of caching variables.
  * I wanted to cache the DisplayHost, but if I attached the variable to the config object,
  * it sends the extra variable to New Relic, which is not desired.
  *