CI: fix Fedora 34 VM

Fix issue 2361

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

.github/workflows/cgroup2.yaml

@@ -39,6 +39,11 @@ jobs:
             sleep $i
           done
 
+      - name: Reboot (workaround for https://github.com/containers/podman/issues/10928)
+        run: |
+          vagrant halt
+          vagrant up
+
       - name: Set up Rootless Docker
         if: ${{ matrix.provider == 'docker' && matrix.rootless == 'rootless' }}
         run: |

hack/ci/Vagrantfile

@@ -20,6 +20,9 @@ Vagrant.configure("2") do |config|
     # Ensure network-related modules to be loaded
     modprobe tap ip_tables iptable_nat ip6_tables ip6table_nat
 
+    # Workaround for https://github.com/containers/podman/issues/10928
+    dnf upgrade -y
+
     # The moby-engine package included in Fedora lacks support for rootless,
     # So we need to install docker-ce and docker-ce-rootless-extras from the upstream.
     curl -fsSL https://get.docker.com | sh