Bump terraform-docs/gh-actions from 1.2.0 to 1.2.2

Bumps [terraform-docs/gh-actions](https://github.com/terraform-docs/gh-actions) from 1.2.0 to 1.2.2.
- [Release notes](https://github.com/terraform-docs/gh-actions/releases)
- [Commits](terraform-docs/gh-actions@v1.2.0...v1.2.2)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/documentation.yml

@@ -11,7 +11,7 @@ jobs:
         ref: ${{ github.event.pull_request.head.ref }}
 
     - name: Render terraform docs and push changes back to PR
-      uses: terraform-docs/gh-actions@v1.2.0
+      uses: terraform-docs/gh-actions@v1.2.2
       with:
         working-dir: .
         output-file: README.md