feat(`terraform-docs`): Add support for `replace` mode for TF 0.12+; Use native saving to file for TF 0.12+. Both requires `terraform-docs` v0.12.0+ which released in 2021.

[!IMPORTANT] Should be merged after #706

Put an x into the box if that apply:

[ ] This PR introduces breaking change.
[ ] This PR fixes a bug.
[x] This PR adds new functionality.
[ ] This PR enhances existing functionality.

Description of your changes

Closes #179

How can we test changes

.terraform-docs.yml:

formatter: "md"
output:
  mode: replace
  template: |-
        {{ .Content }}

.pre-commit-config.yaml:


repos:
  - repo: https://github.com/antonbabenko/pre-commit-terraform
    rev: ece0c17b91c17b29201aba379f99e79f59813438
    hooks:
      - id: terraform_docs
        args:
          - --args=--config=.terraform-docs.yml
          ## Also CLI options have precedence over YAML config
          ##  that's default behavior of major chunk of tools, so we just preserve it.
          #- --args=--output-mode=inject

antonbabenko / pre-commit-terraform

feat(`terraform-docs`): Add support for `replace` mode for TF 0.12+; Use native saving to file for TF 0.12+. Both requires `terraform-docs` v0.12.0+ which released in 2021. #705

Description of your changes

How can we test changes