[security warning] Update ansi-fragments

[tex0l]

This package uses ansi-fragments@0.2.1 which contains a vulnerable dependency: zamotany/ansi-fragments#21

When a new version of ansi-fragments is released, it should be updated.

[stianjensen]

Is this library still maintained, so if I make PRs to update dependencies to newer versions, they will still get merged and released?