Bump terraform-docs/gh-actions from 1.2.2 to 1.3.0 (#418)

Bumps [terraform-docs/gh-actions](https://github.com/terraform-docs/gh-actions) from 1.2.2 to 1.3.0.
- [Release notes](https://github.com/terraform-docs/gh-actions/releases)
- [Commits](terraform-docs/gh-actions@v1.2.2...v1.3.0)

---
updated-dependencies:
- dependency-name: terraform-docs/gh-actions
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/tfdocs.yml

@@ -10,7 +10,7 @@ jobs:
         ref: main
 
     - name: Render terraform docs inside the README.md and push changes back to PR branch
-      uses: terraform-docs/gh-actions@v1.2.2
+      uses: terraform-docs/gh-actions@v1.3.0
       with:
         working-dir: .
         config-file: .terraform-docs.yml