gha: add SNP attestation test

This tests the attestation of SNP guest.

Signed-off-by: Niteesh Dubey <niteesh@us.ibm.com>

.github/workflows/run-kata-coco-tests.yaml

@@ -174,6 +174,8 @@ jobs:
       KUBECONFIG: /home/kata/.kube/config
       KUBERNETES: "vanilla"
       USING_NFD: "false"
+      KBS: "true"
+      KBS_INGRESS: "nodeport"
       K8S_TEST_HOST_TYPE: "baremetal"
       SNAPSHOTTER: ${{ matrix.snapshotter }}
       PULL_TYPE: ${{ matrix.pull-type }}
@@ -199,6 +201,18 @@ jobs:
         timeout-minutes: 10
         run: bash tests/integration/kubernetes/gha-run.sh deploy-kata-snp
 
+      - name: Uninstall previous `kbs-client`
+        timeout-minutes: 10
+        run: bash tests/integration/kubernetes/gha-run.sh uninstall-kbs-client
+
+      - name: Deploy CoCo KBS
+        timeout-minutes: 10
+        run: bash tests/integration/kubernetes/gha-run.sh deploy-coco-kbs
+
+      - name: Install `kbs-client`
+        timeout-minutes: 10
+        run: bash tests/integration/kubernetes/gha-run.sh install-kbs-client
+
       - name: Run tests
         timeout-minutes: 30
         run: bash tests/integration/kubernetes/gha-run.sh run-tests
@@ -211,6 +225,10 @@ jobs:
         if: always()
         run: bash tests/integration/kubernetes/gha-run.sh cleanup-snapshotter
 
+      - name: Delete CoCo KBS
+        if: always()
+        run: bash tests/integration/kubernetes/gha-run.sh delete-coco-kbs
+
   # Generate jobs for testing CoCo on non-TEE environments
   run-k8s-tests-coco-nontee:
     strategy: