package/containerd: bump to version 1.7.6

Bugfixes and updates.

Containerd v1.7.x comes with new features including container sandboxing.

https://github.com/containerd/containerd/releases/tag/v1.7.6

Signed-off-by: Christian Stewart <christian@aperture.us>
Signed-off-by: Arnout Vandecappelle <arnout@mind.be>

package/containerd/containerd.hash

@@ -1,3 +1,3 @@
 # Computed locally
-sha256  b109aceacc814d7a637ed94ba5ade829cd2642841d03e06971ef124fa3b86899  containerd-1.6.22.tar.gz
+sha256  084a62f78f96cb5fda02221425f14df09d3e0acd093e4d4b3527900e3ff94677  containerd-1.7.6.tar.gz
 sha256  4bbe3b885e8cd1907ab4cf9a41e862e74e24b5422297a4f2fe524e6a30ada2b4  LICENSE

package/containerd/containerd.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-CONTAINERD_VERSION = 1.6.22
+CONTAINERD_VERSION = 1.7.6
 CONTAINERD_SITE = $(call github,containerd,containerd,v$(CONTAINERD_VERSION))
 CONTAINERD_LICENSE = Apache-2.0
 CONTAINERD_LICENSE_FILES = LICENSE