Upgrade dependency cheerio

[antonykamp]

I was looking threw the dependencies of ice-cap. You have an old version of cheerio 0.20.0 as a dependency. This old version has jsdom 7.0.2 registered as an optional dependency. This old version of jsdom still uses the deprecated request package.

Because some packages, e.g., esdoc, use your package, many developers would be pleased if you upgrade this dependency 😄

Thank you! Antony 😇