package/containerd: bump version to v1.7.8

The eighth patch release for containerd 1.7 contains various fixes and updates.

https://github.com/containerd/containerd/releases/tag/v1.7.8

Signed-off-by: Christian Stewart <christian@aperture.us>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/containerd/containerd.hash

@@ -1,3 +1,3 @@
 # Computed locally
-sha256  4c6042b13746a803766d76b07f756d03678a33a944b52c0b832c238609db1b2e  containerd-1.7.7.tar.gz
+sha256  891b84e614b491ab1d3bd5c8f4fb119e4929c24762e149e83e181e72d687f706  containerd-1.7.8.tar.gz
 sha256  4bbe3b885e8cd1907ab4cf9a41e862e74e24b5422297a4f2fe524e6a30ada2b4  LICENSE

package/containerd/containerd.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-CONTAINERD_VERSION = 1.7.7
+CONTAINERD_VERSION = 1.7.8
 CONTAINERD_SITE = $(call github,containerd,containerd,v$(CONTAINERD_VERSION))
 CONTAINERD_LICENSE = Apache-2.0
 CONTAINERD_LICENSE_FILES = LICENSE