fixing cache key to match apply action cache key

[jamengual]

This pull request updates the action.yml workflow to improve how component paths are handled and cached. The main change is the introduction of a new output, component_cache_path, which stores the absolute path to the component for more reliable referencing in subsequent steps.

Improvements to path handling and caching:

• Added calculation of COMPONENT_CACHE_PATH using realpath to ensure the component path is absolute, and exposed it as a new output variable (component_cache_path) for use in later steps. [1] [2]
• Updated the cache restore step to use component_cache_path instead of the relative component_path, improving robustness when referencing the .terraform directory.

[github-actions]

Changes Found for foobar/changes in plat-ue2-sandbox

Plan: 1 to add, 0 to change, 0 to destroy.

To reproduce this locally, run:

atmos terraform plan foobar/changes -s plat-ue2-sandbox

---

Create

+ random_id.foo[0]

Terraform Plan Summary

  # random_id.foo[0] will be created
  + resource "random_id" "foo" {
      + b64_std     = (known after apply)
      + b64_url     = (known after apply)
      + byte_length = 8
      + dec         = (known after apply)
      + hex         = (known after apply)
      + id          = (known after apply)
      + keepers     = {
          + "seed" = "foo-plat-ue2-sandbox-blue"
        }
    }

Plan: 1 to add, 0 to change, 0 to destroy.

Warning: Test warning summary

  with data.validation_warning.warn[0],
  on main.tf line 20, in data "validation_warning" "warn":
  20: data "validation_warning" "warn" {

Test warning details

Warning

Warning: Test warning summary

  with data.validation_warning.warn[0],
  on main.tf line 20, in data "validation_warning" "warn":
  20: data "validation_warning" "warn" {

Test warning details

[github-actions]

These changes were released in v5.6.0.