tests: Enable tests for StratoVirt hypervisor

This commit enables StratoVirt hypervisor to be tested in kata GHA,
incluing k8s, metrics, cri-containerd, nydus and so on.

Meanwhile, adding some unit tests for StratoVirt to make sure it works.

Fixes: #7794

Signed-off-by: Liu Wenyuan <liuwenyuan9@huawei.com>

.github/workflows/basic-ci-amd64.yaml

@@ -22,7 +22,7 @@ jobs:
       fail-fast: false
       matrix:
         containerd_version: ['lts', 'active']
-        vmm: ['clh', 'qemu']
+        vmm: ['clh', 'qemu', 'stratovirt']
     runs-on: garm-ubuntu-2204-smaller
     env:
       CONTAINERD_VERSION: ${{ matrix.containerd_version }}
@@ -60,7 +60,7 @@ jobs:
       fail-fast: false
       matrix:
         containerd_version: ['lts', 'active']
-        vmm: ['clh', 'qemu']
+        vmm: ['clh', 'qemu', 'stratovirt']
     runs-on: garm-ubuntu-2204-smaller
     env:
       CONTAINERD_VERSION: ${{ matrix.containerd_version }}
@@ -101,7 +101,7 @@ jobs:
       fail-fast: false
       matrix:
         containerd_version: ['lts', 'active']
-        vmm: ['clh', 'qemu', 'dragonball']
+        vmm: ['clh', 'qemu', 'dragonball', 'stratovirt']
     runs-on: garm-ubuntu-2204-smaller
     env:
       CONTAINERD_VERSION: ${{ matrix.containerd_version }}

.github/workflows/run-k8s-tests-on-aks.yaml

@@ -33,6 +33,7 @@ jobs:
           - clh
           - dragonball
           - qemu
+          - stratovirt
         instance-type:
           - small
           - normal

.github/workflows/run-metrics.yaml

@@ -48,7 +48,7 @@ jobs:
       # all the tests due to a single flaky instance.
       fail-fast: false
       matrix:
-        vmm: ['clh', 'qemu']
+        vmm: ['clh', 'qemu', 'stratovirt']
       max-parallel: 1
     runs-on: metrics
     env: