fix: get rid of import assertion

Author: fgreinacher

lib/definitions/errors.js

@@ -1,6 +1,8 @@
 import {inspect} from 'util';
-import pkg from '../../package.json' assert {type: 'json'};
+import { createRequire } from "node:module";
+const require = createRequire(import.meta.url);
 
+const pkg = require("../../package.json");
 const [homepage] = pkg.homepage.split('#');
 const linkify = (file) => `${homepage}/blob/master/${file}`;
 const stringify = (object) => inspect(object, {breakLength: Number.POSITIVE_INFINITY, depth: 2, maxArrayLength: 5});