package/containerd: security bump to version 1.5.11

Fixes the following security issues:

- CVE-2022-23648: containerd CRI plugin: Insecure handling of image volumes
  https://github.com/containerd/containerd/security/advisories/GHSA-crp2-qrr5-8pq7

- CVE-2022-24769: Default inheritable capabilities for linux container
  should be empty
  https://github.com/containerd/containerd/security/advisories/GHSA-c9cp-9c75-9v8c



Signed-off-by: Peter Korsgaard <peter@korsgaard.com>