Merge pull request #2754 from AkihiroSuda/fedora36

CI: update Fedora to 36

.github/workflows/cgroup2.yaml

@@ -59,6 +59,9 @@ jobs:
       - name: Set up Rootless Podman
         if: ${{ matrix.provider == 'podman' && matrix.rootless == 'rootless' }}
         run: |
+          # Restart the user session to ensure the cgroup delegation
+          # ref: https://github.com/kubernetes-sigs/kind/pull/2754#issuecomment-1124027063
+          "$HELPER" sudo loginctl terminate-user vagrant || true
           # We have modprobe ip6_tables in Vagrantfile, but it seems we have to modprobe it once again
           "$HELPER" sudo modprobe ip6_tables
           # Disable selinux on rootless podman

hack/ci/Vagrantfile

@@ -3,11 +3,11 @@
 
 # Vagrant box for testing kind with cgroup v2
 Vagrant.configure("2") do |config|
-  # `config.vm.box = "fedora/35-cloud-base"` seems flaky,
+  # `config.vm.box = "fedora/36-cloud-base"` seems flaky,
   # so we specify the URL explicitly.
-  # Mirrors can be found at here: https://admin.fedoraproject.org/mirrormanager/mirrors/Fedora/35/x86_64
+  # Mirrors can be found at here: https://admin.fedoraproject.org/mirrormanager/mirrors/Fedora/36/x86_64
   config.vm.box = "dummy"
-  config.vm.box_url = "https://iad.mirror.rackspace.com/fedora/releases/35/Cloud/x86_64/images/Fedora-Cloud-Base-Vagrant-35-1.2.x86_64.vagrant-virtualbox.box"
+  config.vm.box_url = "https://iad.mirror.rackspace.com/fedora/releases/36/Cloud/x86_64/images/Fedora-Cloud-Base-Vagrant-36-1.5.x86_64.vagrant-virtualbox.box"
   memory = 2048
   cpus = 2
   config.vm.provider :virtualbox do |v|