dependency: update containerd version to 1.5.9

Vulnerable versions: >= 1.5.0, < 1.5.9

Impact:
Containers launched through containerd’s CRI implementation on Linux
systems which use the SELinux security module and containerd versions
since v1.5.0 can cause arbitrary files and directories on the host to
be relabeled to match the container process label through the use of
specially-configured bind mounts in a hostPath volume. This relabeling
elevates permissions for the container, granting full read/write access
over the affected files and directories. Kubernetes and crictl can both
be configured to use containerd’s CRI implementation.

Author: LeonidVas

go.mod

@@ -12,7 +12,7 @@ require (
 	github.com/avast/retry-go v3.0.0+incompatible
 	github.com/briandowns/spinner v1.11.1
 	github.com/c-bata/go-prompt v0.2.5
-	github.com/containerd/containerd v1.5.8 // indirect
+	github.com/containerd/containerd v1.5.9 // indirect
 	github.com/dave/jennifer v1.4.1
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/docker/distribution v2.7.1+incompatible // indirect

go.sum

@@ -157,8 +157,8 @@ github.com/containerd/containerd v1.5.0-beta.1/go.mod h1:5HfvG1V2FsKesEGQ17k5/T7
 github.com/containerd/containerd v1.5.0-beta.3/go.mod h1:/wr9AVtEM7x9c+n0+stptlo/uBBoBORwEx6ardVcmKU=
 github.com/containerd/containerd v1.5.0-beta.4/go.mod h1:GmdgZd2zA2GYIBZ0w09ZvgqEq8EfBp/m3lcVZIvPHhI=
 github.com/containerd/containerd v1.5.0-rc.0/go.mod h1:V/IXoMqNGgBlabz3tHD2TWDoTJseu1FGOKuoA4nNb2s=
-github.com/containerd/containerd v1.5.8 h1:NmkCC1/QxyZFBny8JogwLpOy2f+VEbO/f6bV2Mqtwuw=
-github.com/containerd/containerd v1.5.8/go.mod h1:YdFSv5bTFLpG2HIYmfqDpSYYTDX+mc5qtSuYx1YUb/s=
+github.com/containerd/containerd v1.5.9 h1:rs6Xg1gtIxaeyG+Smsb/0xaSDu1VgFhOCKBXxMxbsF4=
+github.com/containerd/containerd v1.5.9/go.mod h1:fvQqCfadDGga5HZyn3j4+dx56qj2I9YwBrlSdalvJYQ=
 github.com/containerd/continuity v0.0.0-20190426062206-aaeac12a7ffc/go.mod h1:GL3xCUCBDV3CZiTSEKksMWbLE66hEyuu9qyDOOqM47Y=
 github.com/containerd/continuity v0.0.0-20190815185530-f2a389ac0a02/go.mod h1:GL3xCUCBDV3CZiTSEKksMWbLE66hEyuu9qyDOOqM47Y=
 github.com/containerd/continuity v0.0.0-20191127005431-f65d91d395eb/go.mod h1:GL3xCUCBDV3CZiTSEKksMWbLE66hEyuu9qyDOOqM47Y=