Dependencies update

[ElisabethStereosuper]

Lots of "deprecated" warnings when updating or using the generator.

[ElisabethStereosuper]

• [x] http://babeljs.io/env
• [x] https://medium.com/gulpjs/gulp-util-ca3b1f9f9ac5
• [x] graceful-fs
• [x] minimatch

[ElisabethStereosuper]

• [x] clone
• [x] is-my-json-valid
• [x] node-uuid (replace with uuid)
• [x] tough-cookie
• [x] jade (now called pug)
• [x] to-iso-string(replace with @segment/to-iso-string)
• [x] formatio (replace with @sinonjs/formatio)

[ElisabethStereosuper]

• [ ] request@2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142
• [ ] core-js@2.6.11: core-js@<3 is no longer maintained and not recommended for usage due to the number of issues. Please, upgrade your dependencies to the actual version of core-js@3.