fix potential hang on containerd client.LoadContainer

[lianghao208]

fix: #3671

add timeout context for containerd factory during starting process.

[lianghao208]

@dims @SuperQ PTAL, thanks:)

[lianghao208]

kindly ping @cwangVT , might need your approval for pending workflow, thanks

[lianghao208]

@bobbypage can you review this? thanks:)

[lianghao208]

@dims @bobbypage @cwangVT @SuperQ Can this PR get merged by any chance? It's had a pretty big impact on kubelet. If cadvisor hangs on LoadClient/createContainerLocked, it helds the containersLock lock indefinitely, which leads to dead lock and serious goroutine leak. Much appreciated for the review:)

// Create a container.
func (m *manager) createContainer(containerName string, watchSource watcher.ContainerWatchSource) error {
	m.containersLock.Lock()
	defer m.containersLock.Unlock()

	return m.createContainerLocked(containerName, watchSource)
}

[lianghao208]

Could relate to this: kubernetes/kubernetes#102481

[SuperQ]

Sorry, I have no authority here. I am not a Google employee.

[lianghao208]

@cwangVT thanks for the approval. Can you skip the pull-cadvisor-e2e test by updating the list of required checks? It seems this check is pending and can't merge.