Bump terraform-docs/gh-actions from 1.0.0 to 1.3.0

Bumps [terraform-docs/gh-actions](https://github.com/terraform-docs/gh-actions) from 1.0.0 to 1.3.0.
- [Release notes](https://github.com/terraform-docs/gh-actions/releases)
- [Commits](terraform-docs/gh-actions@v1.0.0...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] <[email protected]>

.github/workflows/docs.yml

@@ -11,7 +11,7 @@ jobs:
           ref: ${{ github.event.pull_request.head.ref }}
           token: "${{ secrets.GITHUB_TOKEN }}"
       - name: Terraform Docs
-        uses: terraform-docs/gh-actions@v1.0.0
+        uses: terraform-docs/gh-actions@v1.3.0
         with:
           output-file: README.md
           output-method: inject