feat(ci): add terraform registry source

[mcwarman]

Adds terraform registry source, also adds an alias to hcl plugin as terraform/file for usability.

Registry Provider - terraform/provider

name: Test Terraform Lock plugin resource from SCM

scms:
  default:
    kind: git
    spec:
      url: https://github.com/updatecli-test/jenkins-infra-aws.git

sources:
  kubernetes:
    name: Get version from registry
    kind: terraform/registry
    spec:
      type: provider
      namespace: hashicorp
      name: kubernetes

targets:
  update-file-from-source:
    name: Update files content from source
    kind: terraform/lock
    sourceid: kubernetes
    scmid: default
    spec:
      file: .terraform.lock.hcl
      provider: hashicorp/kubernetes
      platforms:
        - linux_amd64

Registry Module - terraform/file

name: Test Terraform File plugin resource - SCM

scms:
  default:
    kind: git
    spec:
      url: https://github.com/updatecli-test/jenkins-infra-aws.git

sources:
  terraform-aws-modules-eks:
    name: Get version from registry
    kind: terraform/registry
    spec:
      type: module
      namespace: terraform-aws-modules
      name: eks
      targetsystem: aws

conditions:
  using-value:
    name: Condition using value
    kind: terraform/file
    scmid: default
    disablesourceinput: true
    spec:
      file: cik8s-cluster.tf
      path: module.cik8s.source
      value: terraform-aws-modules/eks/aws


targets:
  update-file:
    name: Update files content
    kind: terraform/file
    sourceid: terraform-aws-modules-eks
    scmid: default
    spec:
      file: cik8s-cluster.tf
      path: module.cik8s.version

Test

To test this pull request, you can run the following commands:

cd ./pkg/plugins/resources/terraform/registry/
go test

go build -o ./bin/updatecli && ./bin/updatecli diff --config ./e2e/updatecli.d/success.d/terraform/

[olblak]

I just did some testing and it works great with the UT and e2e tests.

Congrats

Note on myself, I'll need to redesign how we fetch changelog information as we start to have quite a few code duplication