v4.0.4

🔧 maintenance

• chore(render): replaces waitFor with waitForSelector
• ci(travis): update build matrix to cater for node 15
• build(npm): ⬆️ @types/chai, @types/lodash, @types/node, @types/puppeteer, ajv, commander, dependency-cruiser, mocha, mscgenjs, mscgenjs-inpage, puppeteer, shx, typescript, upem