Moderate severity vulnerability

[krizzdev]

I got recent npm vulnerabilities which require some attention:

I'm using version 0.2.1 And my npm audit outputs: Moderate: Regular Expression Denial of Service Package acorn js-query-builder [dev] js-query-builder > jest > jest-cli > @jest/core > jest-config > jest-environment-jsdom > jsdom > acorn More Info : https://npmjs.com/advisories/1488

There is also the pull request #2 which moves jest to the dev dependencies