feat: Changed to use watch for wait for

[stevehipwell]

This PR switches the logic for wait_for to use a watch.

It depends on #166.

[alekc]

@stevehipwell #166 has been merged

[stevehipwell]

@alekc this should now be ready for review.

[alekc]

@stevehipwell released under

terraform {
  required_providers {
    kubectl = {
      source = "alekc/kubectl"
      version = "2.1.0-beta2"
    }
  }
}

I will do another round of testing and once happy will release the 2.1.0

Thanks for contribution