Escape backticks in stdout and stderr

[manabusakai]

I'm using the workflow in the README.

Show Workflow

defaults:
  run:
    working-directory: ${{ env.tf_actions_working_dir }}
permissions:
  pull-requests: write
steps:
- uses: actions/checkout@v4
- uses: hashicorp/setup-terraform@v3

- name: Terraform fmt
  id: fmt
  run: terraform fmt -check
  continue-on-error: true

- name: Terraform Init
  id: init
  run: terraform init

- name: Terraform Validate
  id: validate
  run: terraform validate -no-color

- name: Terraform Plan
  id: plan
  run: terraform plan -no-color
  continue-on-error: true

- uses: actions/github-script@v6
  if: github.event_name == 'pull_request'
  env:
    PLAN: "terraform\n${{ steps.plan.outputs.stdout }}"
  with:
    github-token: ${{ secrets.GITHUB_TOKEN }}
    script: |
      const output = `#### Terraform Format and Style 🖌\`${{ steps.fmt.outcome }}\`
      #### Terraform Initialization ⚙️\`${{ steps.init.outcome }}\`
      #### Terraform Validation 🤖\`${{ steps.validate.outcome }}\`
      <details><summary>Validation Output</summary>

      \`\`\`\n
      ${{ steps.validate.outputs.stdout }}
      \`\`\`

      </details>

      #### Terraform Plan 📖\`${{ steps.plan.outcome }}\`

      <details><summary>Show Plan</summary>

      \`\`\`\n
      ${process.env.PLAN}
      \`\`\`

      </details>

      *Pusher: @${{ github.actor }}, Action: \`${{ github.event_name }}\`, Working Directory: \`${{ env.tf_actions_working_dir }}\`, Workflow: \`${{ github.workflow }}\`*`;

      github.rest.issues.createComment({
        issue_number: context.issue.number,
        owner: context.repo.owner,
        repo: context.repo.repo,
        body: output
      })

---

CI failed when upgrading the AWS provider.

SyntaxError: Unexpected identifier 'compute_environments_order'
    at new AsyncFunction (<anonymous>)
    at callAsyncFunction (/home/runner/work/_actions/actions/github-script/v7/dist/index.js:35424:16)
    at main (/home/runner/work/_actions/actions/github-script/v7/dist/index.js:35522:26)
    at /home/runner/work/_actions/actions/github-script/v7/dist/index.js:35497:1
    at /home/runner/work/_actions/actions/github-script/v7/dist/index.js:35553:3
    at Object.<anonymous> (/home/runner/work/_actions/actions/github-script/v7/dist/index.js:35556:12)
    at Module._compile (node:internal/modules/cjs/loader:1241:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1295:10)
    at Module.load (node:internal/modules/cjs/loader:1091:32)
    at Module._load (node:internal/modules/cjs/loader:938:12)
Error: Unhandled error: SyntaxError: Unexpected identifier 'compute_environments_order'

The cause was that backticks were used in the stdout of warnings. Backticks must be escaped.

Warning: Attribute Deprecated

  with aws_batch_job_queue.example,
  on batch_job_queue.tf line 5, in resource "aws_batch_job_queue" "example":
   5:   compute_environments = [aws_batch_compute_environment.example.arn]

This parameter will be replaced by `compute_environments_order`.

(and 3 more similar warnings elsewhere)

[NJ3rsey]

same issue here