Move flannel to 0.22.2

Signed-off-by: Manuel Buil <mbuil@suse.com>

go.mod

@@ -99,7 +99,7 @@ require (
 	github.com/coreos/go-systemd v0.0.0-20191104093116-d3cd4ed1dbcf
 	github.com/docker/docker v23.0.3+incompatible
 	github.com/erikdubbelboer/gspt v0.0.0-20190125194910-e68493906b83
-	github.com/flannel-io/flannel v0.22.1
+	github.com/flannel-io/flannel v0.22.2
 	github.com/go-bindata/go-bindata v3.1.2+incompatible
 	github.com/go-sql-driver/mysql v1.7.1
 	github.com/go-test/deep v1.0.7