Change color of "No changes" output

[pikeas]

Is your feature request related to a problem? Please describe

It's difficult to quickly scan pyinfra's output, because "No changes" and "Success" are both colored green.

Describe the solution you'd like

Give "No changes" a different color such as blue, or no color.

[Fizzadar]

Yep agreed this is confusing, should be different!