v4.0.0

Pull Requests | Issues | v3.4.2...v4.0.0

⚠️ Breaking Changes ⚠️

#378 Remove features to output environment variables for security

• Some template functions are removed: expandenv, env, getHostByName
  • http://masterminds.github.io/sprig/os.html
  • http://masterminds.github.io/sprig/network.html
• configuration ci is removed

How to migrate

• Use the -var option instead of env
• tfcmt supports Google Cloud Build, so you don't have to use the configuration ci to support Google Cloud Build
• tfactioin >= v0.5.13 supports tfcmt v4.0.0 ref