Fix containerd CVE-2021-32760

See: GHSA-c72p-9xmj-rx3w
Signed-off-by: Adi Muraru <amuraru@adobe.com>

go.mod

@@ -7,7 +7,7 @@ require (
 	github.com/Azure/go-autorest/autorest/adal v0.9.14 // indirect
 	github.com/Microsoft/go-winio v0.4.15 // indirect
 	github.com/Microsoft/hcsshim v0.8.10-0.20200715222032-5eafd1556990 // indirect
-	github.com/containerd/containerd v1.4.4 // indirect
+	github.com/containerd/containerd v1.4.8 // indirect
 	github.com/containerd/ttrpc v1.0.2 // indirect
 	github.com/docker/docker v20.10.2+incompatible // indirect
 	github.com/form3tech-oss/jwt-go v3.2.3+incompatible // indirect

go.sum

@@ -193,8 +193,8 @@ github.com/containerd/console v0.0.0-20180822173158-c12b1e7919c1/go.mod h1:Tj/on
 github.com/containerd/containerd v1.2.7/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
 github.com/containerd/containerd v1.3.0-beta.2.0.20190828155532-0293cbd26c69/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
 github.com/containerd/containerd v1.3.2/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
-github.com/containerd/containerd v1.4.4 h1:rtRG4N6Ct7GNssATwgpvMGfnjnwfjnu/Zs9W3Ikzq+M=
-github.com/containerd/containerd v1.4.4/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
+github.com/containerd/containerd v1.4.8 h1:H0wkS4AbVKTg9vyvBdCBrxoax8AMObKbNz9Fl2N0i4Y=
+github.com/containerd/containerd v1.4.8/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
 github.com/containerd/continuity v0.0.0-20190426062206-aaeac12a7ffc/go.mod h1:GL3xCUCBDV3CZiTSEKksMWbLE66hEyuu9qyDOOqM47Y=
 github.com/containerd/continuity v0.0.0-20200107194136-26c1120b8d41/go.mod h1:Dq467ZllaHgAtVp4p1xUQWBrFXR9s/wyoTpG8zOJGkY=
 github.com/containerd/continuity v0.0.0-20200413184840-d3ef23f19fbb h1:nXPkFq8X1a9ycY3GYQpFNxHh3j2JgY7zDZfq2EXMIzk=