Update terraform-docs/gh-actions action to v1.2.0 (#502)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/continuous-integration-terraform.yml

@@ -28,7 +28,7 @@ jobs:
           fi
 
       - name: Validate Terraform docs
-        uses: terraform-docs/gh-actions@v1.1.0
+        uses: terraform-docs/gh-actions@v1.2.0
         with:
           working-dir: terraform
           config-file: .terraform-docs.yml