Add CI_ENVIRONMENT_TIER and CI_ENVIRONMENT_ACTION

[atc-cegodk]

These should be parsed and added:

        predefinedVariables["CI_ENVIRONMENT_URL"] = this.environment?.url ?? "";
        predefinedVariables["CI_ENVIRONMENT_TIER"] = this.environment?.deployment_tier ?? "";
        predefinedVariables["CI_ENVIRONMENT_ACTION"] = this.environment?.action ?? "";

Originally posted by @atli-c in https://github.com/firecow/gitlab-ci-local/pull/651#discussion_r1016686435