Print version of terraform in commments for plans and applies

[snuggie12]

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• I'd be willing to implement this feature (contributing guide)

Describe the user story
To make any auditing or historical lookup easier, it'd be nice if somewhere in the comment for plans and applies that the version of TF or whatever binary was stated. Best I could tell this does not currently exist.

Describe the solution you'd like
I'm open as to how it is implemented. Just somewhere in the comment.

Describe the drawbacks of your solution
There aren't any aside from max character restrictions being impacted. Also, you wouldn't want to paste it in a spot where it would be too frequent.

Describe alternatives you've considered
None

[lukemassa]

This should be pretty straightforward with a custom workflow: https://www.runatlantis.io/docs/custom-workflows.html#custom-workflows

workflows:
  show-terraform-version:
    plan:
      steps:
        - run: terraform version
        - init
        - plan
    apply:
      steps:
        - run: terraform version
        - apply