package/containerd: security bump to version 1.4.11

Fixes the following security issues:

- CVE-2021-41103: Insufficiently restricted permissions on plugin
  directories
  https://github.com/advisories/GHSA-c2h3-6mxw-7mvq

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

package/containerd/containerd.hash

@@ -1,3 +1,3 @@
 # Computed locally
-sha256  3bb9f54be022067847f5930d21ebbfe4e7a67f589d78930aa0ac713492c28bcc  containerd-1.4.9.tar.gz
+sha256  d42bf6d4f303061166fa5ec2657726a443d978fe13cf08ed13532df5216a61b2  containerd-1.4.11.tar.gz
 sha256  4bbe3b885e8cd1907ab4cf9a41e862e74e24b5422297a4f2fe524e6a30ada2b4  LICENSE

package/containerd/containerd.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-CONTAINERD_VERSION = 1.4.9
+CONTAINERD_VERSION = 1.4.11
 CONTAINERD_SITE = $(call github,containerd,containerd,v$(CONTAINERD_VERSION))
 CONTAINERD_LICENSE = Apache-2.0
 CONTAINERD_LICENSE_FILES = LICENSE