CI: Windows: set NO_HYPERV for canary

Workaround for containerd/containerd issue 13254

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>

Author: AkihiroSuda

.github/workflows/job-test-in-host.yml

@@ -15,6 +15,10 @@ on:
         required: false
         default: false
         type: boolean
+      no-hyperv:
+        required: false
+        default: false
+        type: boolean
       binary:
         required: false
         default: nerdctl
@@ -83,6 +87,11 @@ jobs:
         with:
           fetch-depth: 1
 
+      - if: ${{ inputs.no-hyperv }}
+        name: "Init (no-hyperv): Disable Hyper-V"
+        run: |
+          printf "NO_HYPERV=1\n" >> "$GITHUB_ENV"
+
       - if: ${{ inputs.canary }}
         name: "Init (canary): retrieve latest go and containerd"
         env:

.github/workflows/workflow-test.yml

@@ -143,6 +143,10 @@ jobs:
       runner: ${{ matrix.runner }}
       binary: ${{ matrix.binary != '' && matrix.binary || 'nerdctl' }}
       canary: ${{ matrix.canary && true || false }}
+      # Hyper-V is broken on canary.
+      # [v2.3.0-beta.2 regression] The virtual machine or container JSON document is invalid. (Hyper-V container)
+      # https://github.com/containerd/containerd/issues/13254
+      no-hyperv: ${{ matrix.canary && true || false }}
       go-version: 1.26
       windows-cni-version: v0.3.1
       docker-version: 5:28.0.4-1~ubuntu.24.04~noble