bump node image

Author: BenTheElder

pkg/apis/config/defaults/image.go

@@ -18,4 +18,4 @@ limitations under the License.
 package defaults
 
 // Image is the default for the Config.Image field, aka the default node image.
-const Image = "kindest/node:v1.16.3@sha256:bced4bc71380b59873ea3917afe9fb35b00e174d22f50c7cab9188eac2b0fb88"
+const Image = "kindest/node:v1.16.3@sha256:70ce6ce09bee5c34ab14aec2b84d6edb260473a60638b1b095470a3a0f95ebec"