Update ahmadnassri/action-terraform-report action to v4 (#30)

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

.github/workflows/plan-on-pr.yaml

@@ -66,7 +66,7 @@ jobs:
           -v $(pwd):/terraform -w /terraform \
           hashicorp/terraform show -json terraform.plan > terraform.json
 
-    - uses: ahmadnassri/action-terraform-report@v3
+    - uses: ahmadnassri/action-terraform-report@v4
       with:
         # tell the action the plan outputs
         terraform-text: ${{ github.workspace }}/terraform.text