docs: Add Workflows snippet

[camiekim]

Description

Fixes b/265819420

Intending to use this snippet on the following page:
Staged: https://cloud.devsite.corp.google.com/workflows/docs/tutorials/execute-cloud-run-jobs

Note: If you are not associated with Google, open an issue for discussion before submitting a pull request.

Checklist

Readiness

• Yes, merge this PR after it is approved
• No, don't merge this PR after it is approved

Style

• My sample follows the rules described for Terraform in the Effective Samples style guide
• My sample follows the other requirements and best practices in the Contributing
  guide

Testing

• I have performed tests described in the Contributing guide:

  • Tests pass: terraform apply
  • Lint pass: terraform fmt check

Intended location

• Yes, this sample will be (or already is) included on cloud.google.com
  Location(s):

• No, this sample won't be included on cloud.google.com
  Reason:

API enablement

• If the sample needs an API enabled to pass testing, I have added the service to the Test setup file

Review

• If this sample adds a new directory, I have added codeowners to the CODEOWNERS file

[snippet-bot]

Here is the summary of changes.

You are about to add 7 region tags.

• workflows/cloud_run_job/main.tf:22, tag workflows_terraform_enable_apis
• workflows/cloud_run_job/main.tf:54, tag workflows_terraform_iam
• workflows/cloud_run_job/main.tf:102, tag workflows_terraform_create_bucket
• workflows/cloud_run_job/main.tf:118, tag workflows_terraform_create_ar_repo
• workflows/cloud_run_job/main.tf:127, tag workflows_terraform_create_run_job
• workflows/cloud_run_job/main.tf:154, tag workflows_terraform_create_workflow
• workflows/cloud_run_job/main.tf:200, tag workflows_terraform_create_trigger

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[pattishin]

Hi @camiekim! Just added a few comments - let me know if there is anywhere I can clarify.

[msampathkumar]

/gcbrun

[iennae]

/gcbrun

[glasnt]

Manually verified staged tutorial, works as given. One minor correction to apply before approval/merge.

[glasnt]

/gcbrun

[pattishin]

/gcbrun

[msampathkumar]

LGTM