chore(deps): update terraform-docs/gh-actions action to v1.4.0

| datasource  | package                   | from   | to     |
| ----------- | ------------------------- | ------ | ------ |
| github-tags | terraform-docs/gh-actions | v1.3.0 | v1.4.0 |

Author: renovate[bot]

.github/workflows/terraform.yml

@@ -110,7 +110,7 @@ jobs:
           ref: 'main' # Force checkout of main branch to avoid caching from previous jobs
 
       - name: Terraform Docs
-        uses: terraform-docs/gh-actions@aeae0038ed47a547e0c0fca5c059d3335f48fb25 # v1.3.0
+        uses: terraform-docs/gh-actions@7f8a667921aee9dd89af0f3c6dfa6160d7ebd8bb # v1.4.0
         with:
           working-dir: ./terraform
           output-file: USAGE.md