Apply containerd build patch again

The containerd pure mode build patch is no longer being applied after D535.
containerd is thus no longer executable since we don't have a dynamic loader
in Smalltown. This applies the patch again using Fietsje.

Test Plan: Tested under D544

X-Origin-Diff: phab/D545
GitOrigin-RevId: 76bc4804c4dd0faf5fd38685d0c69bfa4af6ea94
diff --git a/build/fietsje/deps_containerd.go b/build/fietsje/deps_containerd.go
index 0678725..11d9762 100644
--- a/build/fietsje/deps_containerd.go
+++ b/build/fietsje/deps_containerd.go
@@ -21,6 +21,7 @@
 		"github.com/containerd/containerd", "8e685f78cf66e2901b2fbed2fdddd64449a74ab9",
 		buildTags("no_zfs", "no_aufs", "no_devicemapper", "no_btrfs"),
 		disabledProtoBuild,
+		patches("containerd-build.patch"),
 	).use(
 		"github.com/BurntSushi/toml",
 		"github.com/Microsoft/go-winio",