feat: updating json jest config []

Author: aodhagan-cf

packages/json/jest.config.js

@@ -1,7 +1,7 @@
 /* eslint-disable */
-const baseConfig = require('../../baseESMJestConfig.js');
+import baseConfig from '../../baseESMJestConfig.js';
+import packageJSON from './package.json';
 
-const packageJSON = require('./package.json');
 const packageName = packageJSON.name.split('@contentful/')[1];
 
 export default {