fix: Correct terraform_version to tofu_version in setup-opentofu-env action and update ansible command to ping public hosts

.github/workflows/actions-validate.yml

@@ -53,7 +53,7 @@ jobs:
         env:
           ANSIBLE_USER: ${{ secrets.ANSIBLE_USER }}
         run: |
-          ansible -i inventory/hosts -u ${{ secrets.ANSIBLE_USER }} -m ping all
+          ansible -i inventory/hosts -u ${{ secrets.ANSIBLE_USER }} -m ping public
 
       - name: Test kubectl get nodes
         run: |
@@ -67,6 +67,9 @@ jobs:
         run: |
             tofu --version
   
-      - name: Show remote host info
+      - name: Check remote host info is valid
         run: |
-          echo "System ID: ${{ steps.get-host-info.outputs.system-id }}"
+          if [ -z "${{ steps.get-host-info.outputs.system-id }}" ]; then
+            echo "No system ID found"
+            exit 1
+          fi