build:wait should return current build state

[barakbs1]

Hi Percy team,

We've implemented Percy in our functional E2E tests and we love it :) We've implemented it so it would run on every push to 'master' branch ('master' is configured as the 'Default base branch'). We found that the easiest implementation of Percy into our CI which also suits our needs is by using the Build:wait Percy-cli command in dedicated step (see attached screenshot). Unfortunately, build:wait samples only the original build result and doesn't update if build is approved. It would really make our lives much easier, and save us a lot of development time and effort if build:wait would update with build state update (either by default or with when a relevant argument is passed).

WDYT?