build: Disable KVM acceleration

.gitea/workflows/actions.yaml

@@ -54,19 +54,12 @@ jobs:
         run: |
           mkdir -p \
             ubuntu-vm
-      - name: Cache source iso
-        id: cache-iso
-        uses: actions/cache@v4
-        with:
-          path: ubuntu-vm/ubuntu.iso
-          key: ubuntu-24.04.2-live-server-amd64
-
-      - if: ${{ steps.cache-iso.outputs.cache-hit != 'true' }}
-        name: Download source Ubuntu iso
-        continue-on-error: true
+      - name: Download source Ubuntu iso
         run: |
-          curl -L -o ubuntu-vm/ubuntu.iso https://releases.ubuntu.com/24.04/ubuntu-24.04.2-live-server-amd64.iso
-
+          curl -L \
+            https://sn.itch.fyi/Repository/iso/Canonical/Ubuntu%20Server%2024.04/ubuntu-24.04.2-live-server-amd64.iso \
+            -o ubuntu-vm/ubuntu.iso \
+            -u ${{ secrets.REPO_USERNAME }}:${{ secrets.REPO_PASSWORD }}
       - name: Generate seed ISO
         run: |
           apt-get update && \
@@ -93,7 +86,6 @@ jobs:
 
           qemu-img create -f qcow2 ubuntu-vm/ubuntu.qcow2 10G
       - name: Run virt-install
-        # container: quay.io/kubevirt/libvirt
         run: |
           apt-get update && \
           apt-get install -y \
@@ -115,6 +107,7 @@ jobs:
             --graphics none \
             --network network=default \
             --noautoconsole \
+            --cpu qemu64 \
             --wait -1
 
   # semrel: