pngcrush is an optimizer which main purpose is to reduce the size of the PNG IDAT datastream by trying various compression levels an PNG filter methods
You probably want imagemin-pngcrush instead.
$ npm install --save pngcrush-bin
import {execFile} from 'node:child_process';
import pngcrush from 'pngcrush-bin';
execFile(pngcrush, ['-reduce', '-brute', 'input.png', 'output.png'], error => {
console.log('Image minified');
});$ npm install --global pngcrush-bin
$ pngcrush --help
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