Feature: `skip_in_envs`

[oxaronick]

We have some actions that should only be run in certain environments, and we're using in_envs or not_in_envs for those.

That works when we want to throw an error when those get run in the wrong environment, e.g. to inform a user that it's not allowed. However, there are actions we want to skip in some environments, but not consider it an error, e.g. starting local services so we can run e2e tests (should happen in ci and dev, but not in staging or production).

We can implement logic such as [ "$environment" == "dev" ] && ..., but that is cumbersome, especially when testing for multiple environments.

[nickthecook]

Fixed in 1.8.0.