ci: Re-enable run-containerd-sandboxapi job

The job was disabled because TestImageLoad was failing when using the
shim sandboxer with runc due to a containerd bug (config.json not
being written to the bundle directory).

Now that check_daemon_setup uses podsandbox for the runc sanity check,
the root cause of the failure is worked around on our side and the job
can be re-enabled.

Also update the runner to ubuntu-24.04.

Signed-off-by: Fabiano Fidêncio <ffidencio@nvidia.com>
Signed-off-by: Alex Lyn <alex.lyn@antgroup.com>

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

@@ -33,9 +33,7 @@ jobs:
     concurrency:
       group: ${{ github.workflow }}-${{ github.job }}-${{ github.event.pull_request.number || github.ref }}-sandboxapi-amd64-${{ toJSON(matrix) }}
       cancel-in-progress: true
-    # TODO: enable me when https://github.com/containerd/containerd/issues/11640 is fixed
-    if: false
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     env:
       CONTAINERD_VERSION: ${{ matrix.containerd_version }}
       GOPATH: ${{ github.workspace }}