WIP: Remove jq requirement for Terraform Widget

What does this MR do?

blocked by: #235879 (closed)

We currently have a Terraform Widget (See example: https://gitlab.com/emilyring/terraform-test/-/merge_requests/6) that allows users to upload a json artifact that will display changes related to their tfplan.

We currently require the report to look like

{ create: <num>, updated: <num>, delete: <num> }

We ask users to generate this json file by running a command similar to the one below

terraform show --json ${PLAN} | jq -r '([.resource_changes[]?.change.actions?]|flatten)|{"create":(map(select(.=="create"))|length),"update":(map(select(.=="update"))|length),"delete":(map(select(.=="delete"))|length)}' > ${JSON_PLAN_FILE}

This update will allow users to submit the entire tfplan.json file, instead of submitting the converted file. The new script would look something like

script:
    - terraform plan -out=${PLAN}
    - terraform show --json $PLAN > ${JSON_PLAN_FILE}
artifacts:
    name: Full JSON
    reports:
      terraform: ${JSON_PLAN_FILE}

This change is part of issue: #219257. We would like customers to submit the entire tfplan.json file so, in the future, we can display more information.

Screenshots

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers
• Informed Infrastructure department of a default or new setting change, if applicable per definition of done

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

• Label as security and @ mention @gitlab-com/gl-security/appsec
• The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
• Security reports checked/validated by a reviewer from the AppSec team

Closes #219257