refactor: replaced request library as got library

[BalajiSrgm]

Hi @jquatier , request library has been deprecated, so I used got library and upgraded dependency version also verified all test cases, Please validate, merge and npm-publish

used yaml.load instead of yaml.safeLoad // Function yaml.safeLoad is removed in js-yaml 4. Use yaml.load instead, which is now safe by default

[shreya-shah]

Hi @jquatier, can we remove request module as it has been deprecated.