Migrate from mocha to Node.js native test runner

Includes coverage reports when using Node.js 22 onwards

lib/output.js

@@ -843,7 +843,6 @@ function gif (options) {
   return this._updateFormatOut('gif', options);
 }
 
-/* istanbul ignore next */
 /**
  * Use these JP2 options for output image.
  *
@@ -878,6 +877,7 @@ function gif (options) {
  * @throws {Error} Invalid options
  */
 function jp2 (options) {
+  /* node:coverage ignore next 41 */
   if (!this.constructor.format.jp2k.output.buffer) {
     throw errJp2Save();
   }
@@ -1500,7 +1500,6 @@ function _setBooleanOption (key, val) {
  * @private
  */
 function _read () {
-  /* istanbul ignore else */
   if (!this.options.streamOut) {
     this.options.streamOut = true;
     const stack = Error();